The radius of the circle passing through the vertices of the triangle ABC, is
(A) <span class="math-inline">\(\frac{8\sqrt{15}}{5}\)</span>
(B) <span class="math-inline">\(\frac{3\sqrt{15}}{5}\)</span>
(C) <span class="math-inline">\(3\sqrt{5}\)</span>
(D) <span class="math-inline">\(\sqrt{2}\)</span>