The correct answer is C & E only.

The word alleviate means to make something less severe, painful, or difficult.

• Lessen (C) is a direct synonym, meaning to diminish or reduce in extent, amount, or intensity.

• Reduce (E) is also a direct synonym, meaning to make something smaller or less in amount, degree, or size.

The other options are antonyms or unrelated words:

• Worsen (A) means to make or become worse.

• Grow (B) means to increase in size or number.

• Increase (D) means to make or become greater in size, amount, or degree.