Meaning of "make sure"

[Igor]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #5 "Learning tips and instructions", question 2

Answer the questions at the back of the book and make ......... that you check your answers carefully.

(a) obvious
(b) definite
(c) sure
(d) clear

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #5 "Learning tips and instructions", answer 2

Answer the questions at the back of the book and make sure that you check your answers carefully.

Correct answer: (c) sure
_________________________

answere please.

Igor

[Yankee]

Hi

The answer is 'sure':
Answer the questions at the back of the book and make sure that you check your answers carefully.
.