This theory of intelligence consist of one factor- a fund of intellectual competency – which is universal for all the activities of an individual?

Correct option is B

The correct answer is (b); Monarchic Theory
The Monarchic Theory of intelligence proposes that intelligence consists of one major factor or general intelligence, often referred to as "g" factor. This concept is universal for all cognitive activities of an individual, suggesting that if a person is strong in one area of cognitive ability, they are likely to be strong in others as well due to this underlying general intelligence. This theory contrasts with multiple intelligences theories that suggest intelligence is composed of various independent abilities.