Given below are two statements, one labelled as Assertion (A) and the other as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below:

Intrinsic motivation is the most important factor for a learner's learning, since it sustains effort from within, so the Assertion is correct.

The claim that a teacher cannot motivate a learner enough to get interested is incorrect, so the Reason is not correct.

Teachers routinely spark interest through relevance, encouragement and engaging methods, which can grow into intrinsic motivation.

Extrinsic motivation supplied by the teacher can gradually be internalized by the learner.

The Reason wrongly denies the teacher's proven role in shaping motivation.

Deci and Ryan's self-determination theory explains how autonomy, competence and relatedness foster intrinsic motivation.