personality disorders are grouped into three clusters. which of the following most accurately represents the three clusters? select one: a. odd or eccentric; dangerous or inconsistent; shy, uncommunicative, or withdrawn b. shy or withdrawn; dramatic, emotional or erratic; bizarre or thought-disordered c. shy, uncommunicative, or withdrawn; anxious or fearful; dangerous or inconsistent d. odd or eccentric; dramatic, emotional or erratic; anxious or fearful