After repeating the same work day after day, she is ______ it and wants to change the situation.[ ]

A. tired out

B. tired from

C. tired with

D. tired of

根尖细胞增生最快的部分是_________，细胞生长最快的地方是_________，吸收能力最强的部分是_____________，输导水分和无机盐能力最强的部分是_________。