Multiple choice

Directions: The short passage below is followed by a question based on its content. Answer the question on the basis of what is stated or implied in the passage.

Intelligence probably depends on the efficiency of the electrical circuits in the brain, on being able to try out many connections quickly and select the best. Like memory, intelligence will probably be susceptible to improvement by drugs: the idea of an intelligence pill has been suggested so often that it is becoming more than a joke. We are unlikely ever to produce a drug for transforming a moron into a genius but a pill to improve intelligence may well be feasible. Rats clever at threading mazes apparently have more cholinesterase in their brains than duller rats; so intelligent and dull humans may have significant differences in the chemical compositions of their brain fluids. If so, the dull ones might be much brighter with the right mixture.

What is the theme of the passage?

  1. Drugs to partially cure poor intelligence in humans are feasible.

  2. Intelligence can be tremendously boosted by improving the electrical circuits in the human brain by using the proper drugs.

  3. The experiments on rats show for sure that human intelligence follows an analogous path.

  4. Drugs to cure poor intelligence are impossible to make but ridiculous attempts have been made.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Look closely at the word 'partially'. This word correctly represents the author's assertion that “a pill to improve intelligence may well be feasible”.

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