Inglês — normas do cfc

In lines 20-29, Chris Dannen, the author of the text, states that the new job openings available are a result of I - people moving into other careers or occupations; II - the implementation of new professional positions; III - women who leave their jobs to take care of their babies; IV - the retirement of the workers who have reached their 60s. The ONLY correct statement(s ) is(are )