Answer: Option C
Explanation:
To withdraw means to remove or retreat; to advance is the opposite of retreat
Answer: Option D
Explanation:
Secret means hidden or covert; Overt means open to view
Answer: Option B
Explanation:
Heartfelt means expressing genuine feeling, or sincere, so Insincere is its opposite
Answer: Option B
Explanation:
impartial means to be without prejudice or bias, therefore Biased is the opposite
Answer: Option B
Explanation:
Luminous means radiating or reflecting light, or glowing; Dim means dark or dull
