GMAT Critical Reasoning (CR) | Re: Everyone who has graduated from TopNotch High School has an

Always be very careful with options that twist the numbers slightly.
In this case the passage says : Most students with an IQ of over 120 and all students with an IQ of over 150 who apply to one or more Ivy League universities are accepted by at least one of them.
Whenever you see words such as ONLY, MOST you should be doubly careful.
Most doesn't mean necessarily all. This is one reason why options like 4th can be eliminated.

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