This is a necessary assumption of the argument. The argument concludes that adobe is better for building houses in the desert than other materials. This implies that adobe can replace other materials in deserts where controlling heat is important.

This is a premise. The passage explains how adobe keeps houses cool during the day and warm at night to support the conclusion that adobe is a great material for building homes in the desert. Since this claim supports the argument, it can’t be the argument’s main conclusion.

This refers to two premises. The passage explains that adobe conducts heat slowly, which helps keep houses at a steady temperature. This fact supports the claim that adobe is an ideal building material for desert environments. As it supports the argument, it isn’t the conclusion.

This is a necessary assumption. The argument concludes adobe is ideal because it helps desert houses stay at a comfortable, steady temperature. This means the argument assumes that a good building material for desert houses should help keep the temperature pleasant and constant.

This accurately states the main conclusion. The passage says that adobe is an “ideal” material for building in the desert, meaning it’s especially good for that purpose. It specifies that adobe is ideal for constructing desert homes because it regulates house temperature.