Official explanation
The correct answer to this question is (D). This is an Inference question, requiring the test taker to choose the correct answer which must be true based on the information provided in the stimulus. Regarding choice A, the passage only infers that walking lowers the occurrence of hypertension, but does not state that walking eliminates the risk of hypertension. Choice B is incorrect because the passage only infers that one way to lower the occurrence of hypotension is walking; it does not infer that this is the only way to lower the risk of hypertension. Choice C is incorrect as the passage states that walking can assist some people in increasing blood flow and decreasing their resting heart rate, but it does not infer that this is the only way to achieve such results. Choice D is the correct answer. This statement properly identifies the inference that for some people, walking increases blood flow and decreases resting heart rates, which lowers the occurrence of hypertension, itself a risk factor for strokes. Choice E is incorrect as the passage infers that regular walking reduces a risk factor for heart attacks, but does not infer that this is the only way to lower such risks.
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A) Individuals who walk on a regular basis do not run any risk of developing hypertension.= Incorrect we cant be sure that walking does mot run any risk of developing hypertension
B) Individuals who do not walk on a regular basis run a high risk of developing hypertension. - Incorrect as Extreme Answer choice
C) Walking is the most effective method for increasing blood flow and decreasing a resting heart rate. Incorrect- We must pay close attention to the word "Most" Nowhere in the stimulus it is mentioned or can be infer that walking is the most effective method for increasing blood flow
D) A program of regular walking for some people can lower a risk factor for strokes. CORRECT as for some people it can help in lowering risk factor for strokes
E) Only regular walking is necessary to lower the risk of heart attacks - Incorrect ...The word "only" makes this option incorrect
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Veritas Prep Official Solution:

The correct answer to this question is (D). This is an Inference question, requiring the test taker to choose the correct answer which must be true based on the information provided in the stimulus.


Regarding choice A, the passage only infers that walking lowers the occurrence of hypertension, but does not state that walking eliminates the risk of hypertension.

Choice B is incorrect because the passage only infers that one way to lower the occurrence of hypotension is walking; it does not infer that this is the only way to lower the risk of hypertension.

Choice C is incorrect as the passage states that walking can assist some people in increasing blood flow and decreasing their resting heart rate, but it does not infer that this is the only way to achieve such results.

Choice D is the correct answer. This statement properly identifies the inference that for some people, walking increases blood flow and decreases resting heart rates, which lowers the occurrence of hypertension, itself a risk factor for strokes.

Choice E is incorrect as the passage infers that regular walking reduces a risk factor for heart attacks, but does not infer that this is the only way to lower such risks.
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