Intentional Learning, as Described in the Textbook, Would Be Most

Intentional learning, as described in the textbook, would be most important for which one of the following learning tasks?

A) Revising previously inaccurate understandings of scientific phenomena
B) Learning how to spell words that violate common English letter-sound relationships (e.g., the term hors d'oeuvre)
C) Learning that performance on classroom tests is usually better if one studies a little bit every night rather than cramming at the last minute
D) Learning how to ask grammatically correct questions in the English language