A Botanist Is Studying the Growth Rings of a Redwood

A botanist is studying the growth rings of a redwood tree. She notices that three concentric rings are very thin compared to the surrounding growth rings. What can she deduce from the presence of these thin growth rings?

A) The tree developed more apical shoot meristems during that time period.
B) The tree may have experienced a drought or had limited access to nutrients during that time period.
C) The tree developed more secondary xylem during that time period.
D) The tree had ample access to water and other resources during that time period.