问题详情

After examining the results of Study 2, a student con-cluded that the AGTB at each of the 25 plots remainedconstant. Which of the following alternative explana-tions is also consistent with the results？
A.The AGTB at all 25 plots increased.
B.The AGTB at all 25 plots decreased.
C.The AGTB at some of the plots increased and the AGTB at some of the plots decreased.
D.The AGTB at plots bounded by forest increased and the AGTB at plots bounded by clearingsremained constant.请帮忙给出正确答案和分析，谢谢！