<span>B. The Readers' Guide is a basic index, while the other resources are full databases allowing access to actual articles.
The Reader's Guide only dates back to 1983 and only contains works that are considered popular. the total number of works within the reader's guide numbers only slightly higher than 450.</span>
Rosalind Frankin was the orginal creator of Photo 51. Her ideas where stolen by Watson & Crick and they recieved all the benefits for her discoveries.
