Correct Answer: conventional

Solution : The correct choice is the first option .

Offbeat typically refers to something non-traditional, or different from the mainstream.

Conventional means conforming to established customs or widely accepted practices, making it the correct antonym.

The meanings of the other options are as follows:

• Unique means one of a kind.
• Freaky suggests something unconventional or strange.
• Weird means very strange or unusual.