Question

It does not seem like one vote can make a difference. Every eligible person should vote. Which revision offers the most improvements in sentences fluency .

Answer 1

A. "Although it does not seem like one vote can make a difference, every eligible person should vote."

Step-by-step explanation:

Answer 2

A conjunction may make the sentence more fluent. For example, you could say:
"It does not seem like one vote can make a difference, but every eligible person should vote."