Final answer:
The primary goal of a political party in a winner-take-all election system is winning a majority of the elections to allow their policies to be enacted.
Step-by-step explanation:
The primary goal of a political party in a winner-take-all election system is D) Winning a majority of the elections will allow the party's policies to be enacted. In a winner-take-all system, the party that wins the majority of elections gains the power to implement its policies. Since only one candidate can win in each election, parties aim to secure a majority of seats in order to have the most influence in the government and enact their policies.