Tennis is probably the most popular sport played with a racquet. Which of the following lesser known sports is played with a racquet as well?

a. Lacrosse
b. Polo
c. Badminton
d. Croquet

c. Badminton

The lesser-known sport played with a racquet is (c) Badminton.

The lesser-known sport that is played with a racquet is c. Badminton.

To arrive at the correct answer, you can eliminate the other options by understanding their basic rules and equipment used:

a. Lacrosse: Lacrosse is a sport that is played with a small rubber ball and a long-handled stick called a crosse, which has a netting at the end. The players use the crosse to catch, pass, and shoot the ball. Unlike tennis, lacrosse does not involve the use of a racquet.

b. Polo: Polo is played on horseback, where players hit a small ball with a long-handled mallet. The objective is to score goals by hitting the ball into the opponent's goal. Like lacrosse, polo does not use a racquet.

d. Croquet: Croquet is a lawn game played using wooden mallets to hit balls through hoops. Although it involves the use of a mallet, it is not played with a racquet.

By process of elimination, the correct answer is c. Badminton. Badminton is a sport in which players use racquets to hit a shuttlecock over a net. It is similar to tennis in terms of using a racquet, but played with different rules and equipment.