The verbs 'possess' [at 'A'] and 'takes' [at 'C'] do not agree with their subjects 'he' and 'they', respectively. However, if we interchange 'A' and 'C', the apt subject-verb agreement is established.
The verb 'bring' is apt at 'B' because it is preceded by the infinitive marker 'to' and it is in its infinitive form.
The correct order is CBA. Hence, the correct answer is option (d).
Correct statement after corrections: If he takes people who have strong intuition, for example, in waves and wave behaviour, like musicians, they will be able to bring in an extra insight as they possess experience.
Note:
Subject-Verb Agreement: Matching up singular or plural subjects with singular or plural forms of a verb is part of the process called agreement. This can be understood better by the examples given: - "She likes cooking." [singular subject and verb] -- "They like to cook vegetables." [plural subject and verb]