Answer:
D. Readers' Guide
Explanation:
The Reader's Guide to Periodical Literature is a reference guide that allows you to obtain information on recently published articles, journals and magazines. This index has been published since 1901 and it organizes its information by article subject. This would be the best starting point for your research, as it would allow you to look for information on periodicals and magazines on fashion that were published in the 1980s.
