Which of these is an opinion?
А
Students who enter a duck calling contest must make four duck calls in only 90
seconds
B
It's not hard to write an essay describing how you would live through a zombie
apocalypse.
с
To enter the ice-sculpting contest, students send in photos showing their ice-sculpting
skills.
D
Students can win $10,000 for making a prom dress or tuxedo entirely out of duct tape.