(True) Despite the high success rates of phobia treatments, most sufferers remain untreated While phobias are among the most easily treated mental health problems, less than 25% of Sufferers seek treatment (from the last 4 lines in the passage)
(True) The majority of phobia sufferers run the risk of developing associated problems Since majority of phobia sufferers do not go for treatment, it therefore follows that majority of them run the risk of developing associated problems (from the last 3 lines in the passage)
(Cannot Say) Weight gain is the main side effect caused by taking MAO inhibitors. The passage stated that weight gain is one of the side effects of taking MAO inhibitors, it never stated specifically that this is the main side effect
(Cannot say) Flooding is a less effective form of therapy than CBT.
The effectiveness of both were never compared, it was there level of popularity that was compared