`underline("A dark horse")`

Options

A. an unforeseen competitor
B. a black horse
C. a nightmare
D. an unknown person

Answer

A

Explanation

a dark horse: a person who does not tell other people much about his life, and who surprises other people by having interesting qualities, a person taking part in a race, etc., who surprises everyone by winning
• 17-year-old Karan could also be a dark horse for the medal in the Olympiad. The best option is an unforeseen competitor