I think there is also a logical jump required for the mosquito biting human and residual blood attracting the female.

It could either be A or C.

I would go with A, rash and blood is more logical than residual blood and a mosquito bite.

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C is the answer. This question requires test takers to read carefully each specifically word like RC questions.

First, " ruptured blood vessels" are caused by bites from any kind of mosquito -> leading to the failure of SafeZone
C tells that male mosquito is active -> leading to more "ruptured blood vessels"

This is a magoosh question , I was wondering if going to biological statement , in otpion C : Male Anopheles do not feed on human blood , this is true if biology is concerned. But also in option D , Bleeding Gums and Bloody nose both aren't proper symptoms of Maleria.
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Does a rash cause bleed? If so I would go with A.

In case the rash remains under the skin as in it does not bleed, I would opt for answer choice C.

I do not like this question
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The key here is to note that the repellant only works against females, so Males can still bite humans, penetrate the vessels thus rendering the repellant ineffective.

C is this.
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While it may be true that the male mosquitoes may be active at the same time as female mosquitoes, this does not justify as to why the SafeZone repellent SHOULD NOT be applied, because the repellent has no effect on the male mosquitoes' biting - the male mosquitoe may bite anyway - irrespective of whether the repellent is used or not.
On the other hand, in option A, even when the male mosquito does not bite a person, the likelihood of the female mosquito biting the person INCREASES due to the rashes caused by the repellent - hence, in my view, option A is the correct answer.

Of course, the assumption here is that rash does increase the presence of blood on the surface of the skin (it actually does, although one cannot see it)

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Kudos if you think it makes sense, comment if you think it doesn't

This is poor quality question. Male mosquito biting a hole and causing blood drop needs outside information and crazy imagination.

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In my opinion, none of the answer options work.

We need to argue against using Safezone in malaria areas. So we need to say that SafeZone would be ineffective in preventing malaria.

A) SafeZone mosquito repellant has been shown to cause irritation that may result in a mild rash.

It doesn't say that SafeZone may not be effective against malaria. Also, the option says 'mild rash' which indicates a mild side effect. We cannot rule out SafeZone because of it.

B) The culex mosquito, a different species of mosquito, is found in many areas where the anopheles mosquito is found.

No info on culex. Irrelevant.

C) The male Anopheles mosquito also feeds on human blood and is active at the same time as the female.

Again, male Anopheles mosquito is irrelevant. Though it does say that it feeds at the same time as female, it doesn't say that it leaves blood on human skin. I wouldn't assume that there would be blood on human skin.

D) Once a person has contracted malaria, he or she may experience both bleeding gums and a bloody nose.

What happens after a person contracts malaria is irrelevant. We need to avoid malaria.

E) Some mosquitoes, after biting a person covered in SafeZone, can go on to bite a person not covered in SafeZone.

We don't have enough information to understand the relevance of this.
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