Which of these is an opinion? A. Some people buy things that make them proud.
B. People sometimes buy things that are used.
C. It is silly to spend money on celebrity items.
D. Movie stars have sold their items at auctions.

C. it is silly to spend money on celebrity items.

Explanation:

saying something is "silly" indicates their opinion on the topic.

C

Explanation:

Because the other questions are statements

answer; (d) i believe the best answer is ; ///people said that man could not fly, but in 1903, orville and wilbur wright made the first sustained powered flight in a heavier- than-air machine;

pandas are endangered because of habitat destruction by humans.

as of 2014 there were around 2,000 left, since then, it supposedly has risen 17%.

they are a very endangered species.

-theoneandonly003