but most probably, letter A is correct..the word just has to be refusement, instead of refusing, coz refusing is a verb..

letter B is obviously incorrect because of the word “them”..

letter C is incorrect because there’s no such sentence..it doesn’t make sense..let me straighten it out for you..there’s no sentence as “they are refusing to say anything is not surprising”..

They’re is a contraction for They are.

A look at the revised sentences shows immediately that a) is correct.

Award the 10 marks to cranberry girl.

i choose C

coz they’re is they are refusing……………..

‘are’ front words are always come with ……..ing

that simple! 🙂