Final answer:
All three types of intelligence (analytical, creative, and practical) are involved in different aspects of novel writing.
Step-by-step explanation:
Based on Sternberg's triarchic theory of intelligence, all three types of intelligence (analytical, creative, and practical) are involved in different aspects of novel writing. Analytical intelligence is crucial for developing well-structured plots and characters, while practical intelligence is important for understanding readers' preferences and market demands. Creative intelligence is primarily involved in generating novel and imaginative ideas.