<i>In question below fill the gap with the appropriate option</i>:Tosin refused to be .... though he has written the same examination three times

In question below fill the gap with the appropriate option: Tosin refused to be .... though he has written the same examination three times

In question below fill the gap with the appropriate option:

Tosin refused to be .... though he has written the same examination three times

The correct answer is C. frustrated

No explanation given