The correct answer is: B. Sporadic : Infrequent
Fatigue is the state of being tired, while resting is the act of taking a break from activity in order to recover from fatigue. Similarly, sporadic is the state of happening irregularly or infrequently, while infrequent is the state of happening rarely.
A. Elevated : Exalted is incorrect because elevated means raised or lifted up, while exalted means highly respected or honored.
C. Ward : Comfortable is incorrect because a ward is a hospital room or a division of a hospital, while comfortable means in a state of physical or mental ease.
D. Overweight : Dieting is incorrect because overweight means weighing more than is considered healthy, while dieting means following a special diet in order to lose weight.