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Fact: Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.
Fact: over 95 percent of people who have asthma also suffer from hay fever.
If the information given as facts above is true, which of the following must also be true?
- Hay fever is a prerequisite for the development of asthma
- Asthma is a prerequisite for the development of hay fever
- Those who have neither hay fever nor asthma comprise less than 5 percent of the total population
- The number of people who have both of these ailments is greater than the number of people who have only one of them
- The percentage of people suffering from hay fever who also have asthma is lower than 95 percent.
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