Question

will fan and medal is some one can explain this to me :)
Which word in the sentence is the participle?

My grandfather, now in his eighties, uses a walking stick.

A.
stick

B.
eighties

C.
uses

D.
walking
I think it is D or C

Answer 1

Uses :_)

Answer 2

@iSpiffy2wice thank you :)

Answer 3

no problem :_)