<p>Could someone help me with the following question please?</p>
<p>Page 65 (Section 6, Question 5). The question is as follows:</p>
<ol>
<li>In the figure above, triangle ABC is inscribed in the
circle with center O and diameter AC. If AB = AO, what is the degree measure of angle ABO?
(A) 15°
(B) 30°
(C) 45°
(D) 60°
(E) 90°</li>
</ol>
<p>And the picture that goes along with it can be found on the following link.
<a href="http://www.collegeboard.com/prod_downloads/sat/sat-preparation-booklet.pdf%5B/url%5D">http://www.collegeboard.com/prod_downloads/sat/sat-preparation-booklet.pdf</a></p>
<p>Thanks :)</p>