When the integers 10, 0, 5, –5, –7 are arranged in descending or ascending order, them find out which of the following integers always remains in the middle of the arrangement.

Given, 10, 0, 5, -5, -7

Descending order 10, 5, 0, -5, -7

Ascending order -7, -5, 0, 5, 10

⇒ Option A is correct since, when the given integers are arranged in ascending or descending order 0 lies in middle.

⇒ Option B is incorrect as 5 does not lie in middle

⇒ Option C is incorrect as -7 does not lie in middle

⇒ Option D is incorrect as -5 does not lie in middle