A67-year-old man presents with pain and stiffness in his shoulders and hips lasting for several weeks with no history of trauma. he also has complaints of headache, throat pain, and jaw claudication. it is imperative to diagnose this patient promptly in order to prevent which of the following complications? (a) anemia(b) cerebral aneurysms(c) mononeuritis multiplex(d) ischemic optic neuropathy(e) respiratory tract complications