Which of the following is more useful for the students of different abilities…

Assessment approaches in education differ along two independent axes: how often assessment takes place, a single point-in-time exercise versus regular, spaced-out assessment across the year, and how many domains of a learner's development they cover, only scholastic (academic) performance versus also co-scholastic aspects such as life skills, attitudes, and co-curricular participation. An approach that is both regular in frequency and broad in domain coverage samples a learner across more occasions and more facets of development than an approach that is a single check or limited to one domain.

Applying this to the given options: Continuous and Comprehensive Evaluation (CCE) is the approach among those listed that combines both properties, evaluating a learner on an ongoing basis spread over the year and across both scholastic and co-scholastic domains. This dual property (continuous plus comprehensive) is what lets a teacher recognise strengths in a student who may not perform well on one particular occasion or in one domain but shows ability elsewhere, which is exactly the situation described in the question: students of different abilities and interests.

• Internal Evaluation: conducted within the school by the subject teacher rather than an outside body. The term specifies WHO conducts the assessment, not how often it happens or how many domains it covers.

• External Evaluation: conducted by an agency outside the school, typically as a single formal examination at a fixed point such as the end of a term or year, testing a fixed set of skills on that one occasion.

• Practical Evaluation: limited to hands-on, activity-based, or laboratory/skill tasks, which is a single domain (practical skill) rather than a comprehensive spread across scholastic and co-scholastic domains.

Because CCE alone is both continuous in frequency and comprehensive in domain coverage, it is the option best suited to catering to students of different abilities and interests, consistent with the officially keyed answer for this UPTET 2021 item.