A regional rail company wants to reduce its delays. Presently, 70 percent of the trains arrive on time. The company’s goal is to improve this to 95 percent. What form of improvement trajectory will most likely occur? a. Exponential growth b. Exponential decay c. Diminishing return growth

Option A is correct.
Because Exponential growth will improve the percentage the occurence of events . Exponential growth is a specific way that a quantity may increase over time. It occurs when the instantaneous rate of change of a quantity with respect to time is proportional to the quantity itself .
Option B is incorrect.
Exponential decay is the decrease in a quantity according to the law for a parameter and constant where is the exponential function and is the initial value.
OPtion C is incorrect.
Diminishing returns also called law of diminishing returns or principal of diminishing marginal productivity