It was a fabulous idea.

A. excellent

B. fruitful

C. legendary

D. precious

Answer: Option A

Solution(By Examveda Team)

Excellent : extremely good; outstanding.
Fruitful : producing good or helpful results; productive.
Legendary : described in or based on legends.
Precious : of great value; not to be wasted or treated carelessly.
Fabulous : very good; wonderful.

Synonym of Fabulous is Excellent