'Golf' is related to 'Holes' (the units of play/structure in a round) in the same way as 'Baseball' is related to which standard units of play?

Introduction / Context:
Sports analogies often map a sport to its canonical unit of play. In golf, a course is composed of holes, and players complete a certain number of holes per round. We must identify the equivalent unit for baseball.

Given Data / Assumptions:

• Golf → holes (18 holes in a standard round).
• Baseball games are partitioned into innings.
• Other options refer to scoring outcomes or other sports.

Concept / Approach:
Maintain the relation: sport → structural unit of time/play within a regulation match. Baseball uses innings to divide game time and alternate offense/defense.

Step-by-Step Solution:
1) Identify the structural unit for golf: holes.2) Identify the structural unit for baseball: innings (nine regulation innings in professional play).3) Select 'Innings' to preserve the mapping.

Verification / Alternative check:
Rules of baseball define a game as nine innings (with extra innings if tied). This mirrors how golf defines a round by holes (e.g., front nine/back nine).

Why Other Options Are Wrong:

• Goal: Associated with soccer/hockey; not baseball.
• Points: A scoring measure, not the structural unit of play.
• Serve: Associated with tennis/badminton/volleyball.
• None of these: Incorrect because 'Innings' is correct.

Common Pitfalls:
Confusing scoring terms with the structural division of a game. Stick to the unit of play.

Final Answer:
Innings