Let's analyze each option:

A) 1/x - 3:

When x decreases from 2 to -2, 1/x - 3 will definitely increase. When x is 2, 1/x - 3 is 1/2 - 3 = -2.5. When x is -2, 1/x - 3 is 1/(-2) - 3 = -0.5 - 3 = -3.5. So, as x decreases from 2 to -2, the value of 1/x - 3 increases.

B) 1 + 1/x:

When x decreases from 2 to -2, 1 + 1/x will not definitely increase. When x is 2, 1 + 1/x is 1 + 1/2 = 1.5. When x is -2, 1 + 1/x is 1 + 1/(-2) = 1 - 0.5 = 0.5. So, as x decreases from 2 to -2, the value of 1 + 1/x does not always increase.

C) 5 - (x * x):

When x decreases from 2 to -2, 5 - (x * x) will not definitely increase. When x is 2, 5 - (x * x) is 5 - (2 * 2) = 5 - 4 = 1. When x is -2, 5 - (x * x) is 5 - ((-2) * (-2)) = 5 - 4 = 1. So, as x decreases from 2 to -2, the value of 5 - (x * x) does not always increase.

D) 2 + x:

When x decreases from 2 to -2, 2 + x will not definitely increase. When x is 2, 2 + x is 2 + 2 = 4. When x is -2, 2 + x is 2 - 2 = 0. So, as x decreases from 2 to -2, the value of 2 + x does not always increase.

Therefore, the option A) 1/x - 3 is the correct choice because as x decreases from 2 to -2, the value of 1/x - 3 definitely increases.