Which of the following is NOT a valid word formed from the root 'ACT'?

B. ACTOR

From the root 'SCRIBE', which of the following words is formed by adding a suffix?

B. SCRIBER

Which of the following words can be formed by removing a letter from 'CART'?

A. ART

Hot: Cold: Warm

A. COOL

If 'APPLE' is coded as '1-16-16-12-5', what is the code for 'GRAPE'?

A. 7-18-1-16-5