Which of the following is a normal blood pressure (BP) response to aerobic exercise?

Both systolic and diastolic BP increase proportionately to increases in workload.

Systolic BP increases and diastolic BP decreases.

Systolic BP increases proportionately to increases in workload and diastolic BP remains unchanged or decreases slightly.

Systolic and diastolic BP both decrease at the onset of exercise, then increase in proportion to the increase in intensity.