Self-study
Most large nurseries sell raspberry plants primarily to commercial raspberry growers and sell only plants that are guaranteed to be disease-free. ████████ ███ ████████ ██ █████████ ██████ ████ ███████ ████████ ████ ███████ ██████ ███████ █ █████ ████ ████████ ████████ ████████████
Summary
Most large nurseries sell raspberry plants primarily to commercial raspberry growers. These large nurseries only sell plants that are guaranteed to be disease-free. However, Johnson received a shipment of raspberries with a disease from Wally’s plants.
Strongly Supported Conclusions
Large nurseries -most-> sell to commercial raspberry growers
Large nurseries -most-> guarantee disease-free plants.
If Wally’s plants is a large nursery, it probably broke its guarantee.
21.
Which one of the following ██ ████ ████████ █████████ ██ ███ ███████████ ██████
a
If Johnson is █ ██████████ █████████ ██████ ███ ███████ ██████ ██ ███ █ █████ ████████ ████ ███ ████████ ██ █████████ ██████ ████ ███████ ████████ ███ ████████ ██████████ ██ ██ █████████████
The stimulus does not give any information about non-large raspberry nurseries. Thus, this answer choice has no support.
b
Johnson is probably ███ █ ██████████ █████████ ██████ ██ ███ ████████ ██ █████████ ██████ ████ ███████ ████████ ████ ███████ ██████ ███ ███ ████████ ██ ██ ███ ██████████ ██ ███
This does not consider that Wally’s Plants might not be a large nursery and has no guarantee to sell disease-free plants. Nothing in the stimulus says that Wally’s Plants is a large nursery, and it is unreasonable to assume that it is.
c
If Johnson is ███ █ ██████████ █████████ ███████ ████ ███████ ██████ ██ ████████ ███ █ █████ ████████
Johnson’s status as a commercial raspberry farmer has no bearing on whether Wally’s Plants is a large nursery. The stimulus says that most large nurseries primarily sell to commercial raspberry growers, not exclusively.
d
Wally's Plants is ████████ ███ █ ██████ ████████ ███████ ██ ██ █████ ███ █████████ ██████ █████████ ██ ██████████ █████████ ████████
Nothing in the stimulus provides information about what constitutes a “well-run” nursery.
e
If Wally's Plants ██ █ █████ ████████ ████ ███ █████████ ██████ ████ ███████ ████████ ██ ███ ████████ ████ ████████ ███ ████████ ██ ████ ████ ██████████ ██ ███
This answer choice is great because it assumes that Wally’s Plants is a large nursery. Thus, you can infer that Johnson’s raspberries were probably not as they were guaranteed because large nurseries mostly ship to commercial growers and promise healthy raspberries.