IV. Reading Comprehension: Choose the best answer to each question. Article 1           Multiple Sclerosis (MS) can be a devastating disease. In MS, for reasons still unknown, the body’simmune system attacks the myelin insulation of nerve fibers. This can cause some of nerve fibers to die, whileothers become ineffective during a prolonged period of regeneration. The effects of this nerve damage caninclude reduced or spasmodic control of the body, and lowered capacity or disruptions of the senses. For manypeople, a vision problem is the first symptom of MS.
         Optic neuritis, an inflammation of the optic nerve, is the most common visual disorder associated withMS. Double vision (diplopia) and involuntary movement of the eyes (nystagmus) are the two other problems.Nystagmus and diplopia are both linked to inflammation of brainstem areas that control movement of the eye.The three disorders are not linked to each other and usually occur separately.
        Symptoms of optic neuritis include blurred vision, dimming of colors, eye pain that’s worsened by eyemovement, blind spots and loss of contrast sensitivity. These symptoms may worsen over the first few days ortwo weeks. Then the condition usually starts improving. Some people recover within a month, while othersneed up to a year to recover. Most people regain normal or close-to-normal sight.
        Temporary flare-ups of optic neuritis symptoms may also occur. Hot showers or baths, exercise or a fevermay all trigger dimmed color, blurred vision and other visual problems. These heat-related symptoms resolvewhen the patient cools off, be it from ice packs, over-the-counter fever reducers, cool drinks, air conditioningor a soak in a cool tub of water.
【題組】41. Where is the above article most likely to appear?
(A) In a news article about the health dangers of climate change.
(B) In a script of a TV commercial for a company selling placebo for MS patients.
(C) In a physics textbook.
(D) In an information pamphlet about MS.