Solve the Problem $\le$ -21
B) X $\ge$ 4
C) X > -20
D) X

Solve the problem.
-If half a number is added to 7, the result is greater than or equal to -3. Find all such numbers.

A) x $\le$ -21
B) x $\ge$ 4
C) x > -20
D) x $\ge$ -20