Correct : b

Explanation:
1. Definition of "myopic": The word "myopic" literally means nearsighted in medical terms, but figuratively, it refers to a lack of foresight or long-term planning.
2. Contextual Clues: The sentence explicitly states that the decision "sacrificed long-term stability to accommodate short-term gains." This directly signals that the choice lacked long-term perspective.
3. Option Analysis:
• shortsighted: Perfectly mirrors the meaning of lacking foresight or focusing only on the immediate present.
• visionary: Means having or showing clear, imaginative ideas about the future (the exact opposite of the context).
• progressive: Means favoring or implementing social reform or new, liberal ideas.
• innovative: Means introducing new ideas or original and creative methods.