Step 1: Understanding the Question:
The objective is to select the word that is a synonym (has a similar meaning) to "OBSTINATE".
Step 2: Detailed Explanation:
"Obstinate" refers to a person who firmly refuses to alter their opinion or course of action, even when faced with persuasion.
Let's evaluate the given choices:
- (A) Yielding: Implies giving in to pressure or demands, making it an antonym.
- (B) Stubborn: Denotes a firm, unyielding determination not to change one's stance, which aligns perfectly with "obstinate."
- (C) Confused: Refers to a lack of clarity or understanding, which is unrelated.
- (D) Flexible: Means being adaptable or willing to change, which is also an antonym.
Hence, "Stubborn" is the accurate synonym.
Step 3: Final Answer:
The correct choice is (B).