Correct option is C
Statement: "Aged persons should avoid vigorous exercises."
Conclusions:
(A) "Exercises are not essential for youngsters."
The statement specifically mentions that aged persons should avoid vigorous exercises but says nothing about the necessity of exercise for youngsters. Therefore, this conclusion does not follow.
(B) "Vigorous exercises can cause damage to tendons."
The statement implies that aged persons should avoid vigorous exercises, possibly due to the potential harm vigorous exercises can cause. Thus, it is reasonable to infer that vigorous exercises might cause damage to tendons, especially in aged individuals. Therefore, this conclusion follows.
Final Answer: C. Only conclusion B follows.