Step 1: Understanding the context.
In Mīmāṃsā philosophy, Jaimini discusses the concept of injunctions that prompt humans to perform specific actions. Among these, the concept of "Dharma" refers to the moral law or duty that compels individuals to act in certain ways as part of their ethical responsibilities.
Step 2: Analyzing the options.
- (A) Dharma: This is correct because "Dharma" refers to the set of duties or actions that an individual is required to perform, according to religious or moral law.
- (B) Apūrva: This refers to a cause that explains the effect of an action, but it does not directly refer to an injunction for action.
- (C) Adṛṣṭa: This refers to the unseen consequences or results of actions, not a command or injunction to act.
- (D) Niṣkāmakarma: This refers to selfless action without attachment to results, but it doesn't specifically serve as an injunction or command to perform actions.
Step 3: Conclusion.
The correct answer is (A) Dharma, as it is the concept in Mīmāṃsā that impels humans to perform actions according to moral and ethical guidelines.