Question

a writer references a source entitled “can seabiscuit’s dna explain his elite racing ability?” in his paper. which signal phrase best establishes the source’s authority and credibility? steven tammariello, associate professor of biological sciences at binghamton university, writes, steven tammariello, former professor of english at the ohio state university, writes, steven tammariello, a horse enthusiast who never misses a kentucky derby, writes, steven tammariello writes,

Explanation:

A biological - sciences professor has relevant expertise for a DNA - related horse - ability topic, enhancing source credibility.

Answer:

Steven Tammariello, associate professor of biological sciences at Binghamton University, writes,