Which choice completes the text so that it conforms to the conventions of Standard English?

Question

Of the five routes up the mountain, the coastal one is the ____.

Accepted Answer

A. longest. Five routes are compared, so the superlative is needed: 'the longest'.

Answer

B. longer — 'longer' is the comparative, for exactly two things.

Answer

C. most long — Short adjectives form the superlative with -est, not 'most'.

Answer

D. more longer — 'more longer' doubles the comparative and isn't a superlative.

Standard English Conventions practice question