In an endurance mesocycle of a beginner's program, which rep and set scheme would be most appropriate?

12-15 reps, 3 sets
4-6 reps, 1 set
8-10 reps, 4 sets
2-5 reps, 5 sets

Endurance Mesocycle is a specific block of training which is designed to attain a specific goal.

This technique can be used in aerobic and sports to train the candidates for tournaments.

Usually a long duration training program is divided into weeks creating smaller tasks which ultimately attains the goal.

These best rep and set scheme for beginners program is 12-15 reps, 3 sets.

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the answer is d

hope this and you do good

exercising at a moderate intensity, and slowly increasing the duration.