select the most appropriate word to fill in the blank. He was physically strong and became a ________ climber of high rocky cliffs. (a) timid (b) fearful (c) unwilling (d) daring

Options

A. timid
B. fearful
C. unwilling
D. daring

Explanation

(d) daring-brave
(a) timid-easily frightened, shy and nervous
(b) fearful-afraid or worried about something