Could be false. The stimulus does not discuss quantities, so we cannot infer what “most people” don’t want.

Could be false. We don’t know anything about how interested in leisure time or job security the invariable problem solvers are.

Must be true. As shown below, implementing solutions whenever one detects them is a sufficient condition for having one’s main desire be to leave a mark on the world.

Could be false. From the stimulus, we just know that when highly successful entrepreneurs see solutions, they implement the solutions. We don’t know anything about how often they see solutions, or what factors influence their ability to see solutions.

Could be false. The stimulus discusses people who implement their solutions, not people whose main desire is to implement their solutions. Similarly, the stimulus discusses those whose main desire is to leave a mark on the world, not those who actually leave a mark.