Answer:
c I think the third option is the answer
I feel 'while' would be the connecting word here. Without it the sentence flops and it helps add onto it with the extra sentence part.
I sharpened your pencil. You were away.
'While' should be the conjunction.
The answer is owls “hear” well.
He worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hardhe worked hard