A card game app has a setting where you can play with a computer instead of another user. The more cards the computer uses, the slower the game runs. Which of the following BEST explains why this could be happening?

The computer's algorithm finds only approximate solutions before making a move.

The computer's algorithm's steps increase exponentially as it uses more cards.

The computer's algorithm is not good at the game, making each move take longer.

The computer's algorithm's steps are efficient, but the algorithm uses heuristics.