In trick-taking games, cards are compared and

a. a player determines the next trump.

b. the cards are moved to the winner's side.

c. all cards valued 2 through 6 are removed.

d. the game continues until all cards are used.

The right answer for the question that is being asked and shown above is that: "d. the game continues until all cards are used." In trick-taking games, cards are compared and the game continues until all cards are used. That is the correct answer.