LSAT 158 – Section 4 – Question 11

LSAT 158 - Section 4 - Question 11

May 2020

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT158 S4 Q11
+LR
Most strongly supported +MSS
Causal Reasoning +CausR
A
92%
161
B
4%
154
C
0%
150
D
3%
147
E
2%
154
123
134
144
 +Easiest 148.293 +SubsectionMedium

In the past, infants who were not breast-fed were fed cow’s milk. Then doctors began advising that cow’s milk fed to infants should be boiled, as the boiling would sterilize the milk and prevent gastrointestinal infections potentially fatal to infants. Once this advice was widely implemented, there was an alarming increase among infants in the incidence of scurvy, caused by vitamin C deficiency. Breast-fed infants, however, did not contract scurvy.

Summary
In the past, infants who were not fed breast milk were fed cow’s milk. However, once doctors began to recommend boiling the milk to sterilize it, there was a major increase in infants with scurvy, which is caused by vitamin C deficiency. However, breastfed infants did not show any increase in scurvy cases.

Strongly Supported Conclusions
Boiled cow’s milk reduces the amount of vitamin C present in milk.

A
Boiled cow’s milk makes less vitamin C available to infants than does the same amount of mother’s milk.
There was no difference in scurvy rates between infants fed cow’s milk and breastmilk until doctors recommended boiling cow’s milk. Thus, it is likely that boiling the milk reduced the amount of vitamin C.
B
Infants who consume cow’s milk that has not been boiled frequently contract potentially fatal gastrointestinal infections.
Nothing in the stimulus gives the rate at which infants contract infections. While the stimulus mentions the potential for infections, nothing says they are frequent.
C
Mother’s milk can cause gastrointestinal infections in infants.
There is no evidence linking breastfed milk and infections in infants anywhere in the stimulus.
D
When doctors advised that cow’s milk fed to infants should be boiled, they did not know that scurvy was caused by vitamin C deficiency.
The stimulus does not provide any information about what doctors believed about scurvy or vitamin C.
E
When doctors advised that cow’s milk fed to infants should be boiled, most mothers did not breast-feed their infants.
The stimulus does not give any information about what “most” mothers were doing at the time. This is too much of an assumption to make.

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LSAT PrepTest 158 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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