What clothes should I wear at the job fair?

The job interview is the first time to meet the company leader. Dress should be solemn and polite. Clothes for this occasion are best matched like this:

Wear a conservative dark blue suit, a standard white shirt, a delicate tie and a suit vest with coordinated colors.

Wear a conservative monochrome dark gray suit, a standard white or light blue shirt and a delicate tie, with a suit vest with coordinated colors.

Wear a conservative pinstripe suit, a standard gray shirt and a delicate tie, and a suit vest with coordinated colors.

Wear a conservative plaid suit, a standard white or light blue shirt, a delicate tie and a suit vest with coordinated colors.