Continuing education opportunities allow adults to a. improve on their skills b. complete their education c. change careers d. all of the above

Letter d is correct. All of the above.

Explanation:

Continuing education is a practice aimed at training and developing human resources in an organization. Through short courses employees have the ability to recycle their knowledge and acquire new skills in other areas of knowledge. There are many benefits that come from continuing education, for the professional, the opportunity for interaction and information exchange, as well as extra motivation and knowledge renewal. For companies, increased productivity and employee motivation and reduced turnover.

i believe it’s b because the rest don’t make sense