Concept:
Idioms are expressions whose meanings cannot be understood simply by looking at the individual words. "Call it a day" is a functional idiom used in both professional and casual contexts to signal the cessation of an activity.
Step 1: Analyzing the Contextual Clues.
The sentence provides a clear reason for the suggestion: "It is getting dark and hard to see the ball." In sports or any outdoor activity, darkness is a logical stopping point because visibility is compromised. The phrase "Let us CALL IT A DAY" follows this observation as a proposal to stop what they are doing.
Step 2: Defining the Idiom.
To "call it a day" means to decide to stop doing something, especially working, because you have done enough or because you are tired or the conditions (like the light) are no longer suitable. It is often used when a person decides that no more productive work can be done in the current session.
Step 3: Evaluating the Alternatives.
• Continue to play: This is the opposite of the idiom's meaning.
• Ready to play: This refers to the start of an activity, not the end.
• Tired: While a person might be tired when they call it a day, the phrase itself describes the action of stopping the task, not the physical state of the person.
Thus, "come to an end" is the most accurate definition of the phrase in this context.
Final Answer: Option B