Concept:Howard Gardner proposed the theory of multiple intelligences, stating that intelligence is not a single ability but a set of distinct types.Explanation:The theory of multiple intelligences was introduced by American psychologist Howard Gardner in 1983. He identified eight types: linguistic, logical-mathematical, spatial, bodily-kinesthetic, musical, interpersonal, intrapersonal, and naturalistic. Traditional views focused on a single general intelligence factor, but Gardner argued that individuals have unique combinations. This theory emphasizes that intelligence cannot be measured by a single IQ test. Other psychologists like Spearman developed the two-factor theory of intelligence, while Goleman and Mayor focused on emotional intelligence. Only Gardner is credited with the concept of multiple intelligences.Answer:A. Gardner