Cricket, Hockey, Basketball, and Football are popular team sports played worldwide. Each of these games has a different number of active players in a team. Let's analyze each game to determine which one has less than 11 active players in a team.

Cricket:
In cricket, each team consists of 11 players. The team batting and fielding have the same number of players on the field. Therefore, cricket does not have less than 11 active players in a team.

Hockey:
In hockey, each team has 11 players, including 10 field players and 1 goalkeeper. The goalkeeper's role is to defend the goal, while the field players try to score by hitting the ball into the opponent's goal. Since hockey teams also have 11 players, it does not have less than 11 active players in a team.

Basketball:
Basketball teams have 5 active players on the court at a time. The objective is to score by shooting the ball through the opponent's hoop while defending their own hoop. Unlike cricket and hockey, basketball has less than 11 active players in a team.

Football:
Football, also known as soccer, is played with 11 players on each team. The players aim to score goals by kicking the ball into the opponent's net while defending their own. Similar to cricket and hockey, football does not have less than 11 active players in a team.

Therefore, the correct answer is option 'C' - Basketball. In basketball, there are less than 11 active players in a team, while cricket, hockey, and football all have 11 players on each team.

C