each sentence. Question 4: 50% of the population works in the service industry. A 50% of the population B the population works C the service industry

The correct answer is **A: 50% of the population**.<br /><br />The phrase "50% of the population" is the subject of the sentence. The rest of the sentence describes what that 50% of the population does. Options B and C are parts of the predicate (the verb and object of the sentence).<br />