Choose the correct form of the word in bold

A. destroyed

B. destroying

C. destroy

D. to be destroyed

A. competitor

B. competition

C. compete

D. competion

A. destruction

B. destroy

C. destruct

D. destructive

A. rapidly

B. rapid

C. rapidity

D. rapidion

A. erosional

B. erosion

C. erosio

D. erosive