Fact 1: Many plants respond to the days growing shorter in the fall by going dormant. Fact 2: Fall starts in September and is windy and dry. Given the two facts above, when do plants respond to shorter days by going dormant?

Select from the following. - September. - July. - trees. - legumes. - Conifers. - Exfoliation. - Winter. - Summer.
The answer is:
September