The exhibition committee (P) attractive and useful (Q) to make the exhibition (R) making efforts (S) has been.
The proper sequence should be
a. Q S R P
b. S R Q P
c. Q P S R
d. S P Q R

Hint:The student should try to find the option which will make the given sequence a logical sequence, which includes a sequence marked by an orderly, logical, and aesthetically consistent relation of the parts of a sentence, or sentences themselves.

Complete answer: Let us thus analyze the options given to us in this question -
Option (a.), 'Q S R P', refers to ‘to make the exhibition has been making efforts attractive and useful’.
Therefore, option (a.) is incorrect as ‘to make the exhibition has been making’ are two verbs side by side, which is grammatically incorrect.
Option (b.), ‘S R Q P', refers to ‘has been making efforts to make the exhibition attractive and useful’.
Therefore, option (b.) is correct as it contains a logical and grammatical sequence.
Option (c.), ‘Q P S R', refers to ‘to make the exhibition attractive and useful has been making efforts’.
Therefore, option (c.) is incorrect as ‘useful has been making’ is incorrect as the verb should be preceded by the noun, not an adjective.
Option (d.), ‘S P Q R', refers to ‘has been attractive and useful to make the exhibition-making efforts’.
Therefore, option (d.) is incorrect as ‘to make the exhibition-making efforts’ is grammatically incorrect due to the placement of the two verbs.
Therefore, option b is correct.

Note: In this question, it will be helpful for the student to recall the concept of logical reasoning, as a question requires a logical sequence. Logical reasoning includes thinking that is capable of or reflecting the capability for correct and valid reasoning.