XY-11-16 此题有误否？

A scrub jay can remember when it cached  a particular piece of food in a particular place, researchers have discovered, and tend not to bother to recover a perishable treat if stored long enough to have rotted.

1. tend not to bother to recover a perishable treat if 

2. they tend not to bother recovering a perishable treat  

3. tending not to bother recovering a perishable treat if 

4. tends not to bother recovering a perishable treat 

5. tends not bothering to recover a perishable treat if 

这题的答案是D，但我有疑问为什么A不行：

首先 JAY can do ... and do ...是可以的，然后我查了网上的英语用法bother to do 也是可以的，说A错的原因是因为A用tend ，not like "D"using tends .but it is unconvincing that how can we use  "sth can do, and does sth .. ????

有牛人解答一下，谢谢！