Assertion: At puberty, human male develops secondary sexual characteristics.
Reason: At puberty there is decreased secretion of testosterone in male.
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Solution
Correct option: (c) If assertion is true but reason is false.
Puberty is the age when both males and females start attaining sexual maturity.
Secondary sexual characteristics also develop during puberty due to the increased secretion of the male sex hormone testosterone.
In males, some of the secondary sexual characteristics include growth of facial and pubic hair, deepening of voice, widening of shoulders, etc.