I think A is the answer.
Reason:
1. can is better than capability;(refer to LZM)
2. yearly means : happening or appearing every year or once a year;
I think you are not wrong to add "can" in front of "produce". However, just like the senetence we always use in daily life - I can sing and dance, we seldom say " I can sing and can dance...".
在以and, but 或 or 等连接的并列句中, 后面分句中与前面分句相同的部分通常被省去。 而且要省就全省, 要不省就全不省“ |