For each blank select one entry from the corresponding column of choices. Fill all blanks in the way that best completes the text.

There is a rising consensus amongst immunologists that the observed rise in allergies in the general population can be attributed to (i) exposure to everyday germs. Known as the hygiene hypothesis, this counterintuitive idea could have far reaching implications—for one, we may now have to be more (ii) those paternal prescriptions to scrub our children’s hands at every opportunity.

Blank (i)

frequent

decreased

heightened

Blank (ii)

wary of

cognizant of

indifferent to

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