With reference to the 'Structure of Intellect Model', in the model proposed by J.P. Guilford, intelligence is classified into three independent dimensions: Operations, Contents, and Products. If 'Evaluation' is placed under 'Operations' in Guilford's initial model, according to this 3D cube structure, how many types of mental processes or components are included under the 'Operations' dimension?

According to J.P. Guilford, the Structure of Intellect Model is a complex combination of three dimensions: 1. Contents - 5 types, 2. Operations - 5 types, and 3. Products - 6 types. Under the 'Operations' dimension come the mental processes that an individual uses to process information, which are 5 in total: Evaluation, Convergent thinking, Divergent thinking, Memory, and Cognition. Hence, the correct option is 'b' (5 types).