Correct option is D
Given:
Virus : Disease:
A virus causes a disease. The relationship here is that of a cause and its effect.
Exercise : ?:
Exercise results in health benefits. The relationship is again cause (exercise) and effect (health).
Why Other Options Are Incorrect:
A. Walking: Walking is a type of exercise, not the outcome of exercise.
B. Jogging: Jogging is another type of exercise, not the result.
C. Cycling: Cycling is also a form of exercise, not its effect.
D. Health: Correct, because the outcome or effect of exercise is improved health.
Conclusion:
The correct analogy is:
Virus : Disease :: Exercise : Health