Which of the following is correct regarding the H-1B visa program?
A) United States businesses have used the H-1B visa program to send American workers to other countries.
B) It brings workers into the U.S. for non-skilled, non-technical jobs only.
C) The number of H-1B visas available annually is unlimited.
D) In seeking an H-1B visa, an employer must affirm that the hiring will not harm wages and working conditions of employees in similar jobs.