Question

I have worked with so many writers who worry their

inconsistent memory is not sharp enough, exact enough, or
reliable enough for them to capture childhood moments with
any authority, and, of course, science had proven the fallibility
of memory time and time again.
O NO CHANGE
O has proven
O had proved
O proved
Help

Answer 1

I believe it's the second option "has proven"

Step-by-step explanation:

It just sounds like it fits better.

Sorry if it's wrong btw.

Answer 2

has proven had proved proved no change