Answer: C. 11/15
Explanation:
Given : The fraction of stores inventory is children's clothing=

The fraction of stores inventory is women's clothing=

Since both events are independent.
Therefore, the fraction of the total inventory is children's or women's clothing = (Fraction of stores inventory is children's clothing ) + (Fraction of stores inventory is women's clothing )


∴ The fraction of the total inventory is children's or women's clothing

Hence, the correct answer is C. 11/15 .