Step 1: Understanding the Question:
The question requires identifying the antonym of the capitalised word 'RECALCITRANT'.
This adjective is often used to describe human behavior and attitude toward authority.
We will evaluate the behavioral traits described by each of the options.
Step 2: Key Approach:
Classify the behavioral context of the target adjective and locate the antonym among synonyms representing identical behavioral traits.
Identify the options that cluster together as positive or negative behavioral adjectives.
Step 3: Detailed Explanation:
• Meaning of RECALCITRANT: The word 'recalcitrant' means having an obstinately uncooperative attitude toward authority or discipline.
Synonyms include stubborn, resistant, defiant, and unmanageable.
• Option A (obedient): This means complying or willing to comply with orders or requests; submissive to authority.
This is the direct opposite behavioral trait of being recalcitrant.
• Option B (unruly): This means disorderly and disruptive, and not amenable to discipline or control.
This is a close synonym of 'recalcitrant'.
• Option C (rebellious): This means showing a desire to resist authority, control, or convention.
This is another close synonym of 'recalcitrant'.
• Option D (obstinate): This means stubbornly refusing to change one's opinion or chosen course of action, despite attempts to persuade one to do so.
This is also a synonym of 'recalcitrant'.
Step 4: Final Answer:
Since 'unruly', 'rebellious', and 'obstinate' are synonyms of 'recalcitrant', the only antonym is 'obedient'.