Critical Reasoning (CR) | In January there was a large drop in the number of new

The key here is the term "average price of home."

In answer choice (A) it gives us a concrete reason for why the average price of homes would increase: the number of expensive homes sold was higher than usual. Since the rest of the housing market - cheap homes to average priced homes - is not doing as well, the average price of homes sold is going to increase. Even if the number of expensive homes sold remained the