For an employee training, the employee to instructor ratio is 12 to 2. If there are "35" instructors for the training, how many employees participated in the training?

A. 280

B. 140

C. 210

D. 350

The ratio is 12 employees to 2 instructors, so for 35 instructors, we can calculate:

12 employees * 35 instructors / 2 instructors = 12 * 35 / 2 = 420 employees

Therefore, the correct answer is not given in the options provided. The correct answer is 420 employees.