Theres only really one. which is we. do you have any answer choices?
Margaret believes she has won the gold medal, but she must wait for the judges final scores
B. direct: satellites; indirect: space
Answrs: Part a) "Facts from a documentary.." This is talking about the benefits of artificial organs instead of donated ones.
Part b) "There are several ..." Because it is a sentence that is likely to precede facts. The others are opinions about how something 'SHOULD' be, and aren't presenting facts or claiming something.The first one 3ven says "I think..." which is clearly an opinion.