Answer:
B). The second sentence describes more of the same idea.
Step-by-step explanation:
The second option most appropriately describes the affiliation between the two sentences. Both the sentences are explaining the similar idea and that is 'benefits and significance of exercising.' The first sentence describes that how exercise is beneficial by stating that 'exercise improves health.' The second continues the flow by displaying another advantage of exercise which is 'to revamp one's mood.' Thus, option B is the correct answer.