According to a recent study, hand sanitizers require a 60 percent minimum alcohol concentration for the killing of most harmful bacteria and viruses.

A)require a 60 percent minimum alcohol concentration for the killing of

B)require that there be a 60 percent minimum alcohol concentration to kill

C)require that a 60 percent minimum alcohol concentration be present to kill

D)require a 60 percent minimum alcohol concentration to kill

E)require that there be a 60 percent minimum alcohol concentration for the killing of


OA D

My doubt : Rule 1) REQUIRE is a verb that takes the either Command subjunctive or the Infinitive.

For ex. We require that HE BE here OR We require HIM TO BE here

Rule 2) Also the correct IDIOM is REQUIRE X to Y.

Experts please advise why B is wrong , it correctly follows the rule 1 I guess?

Also please tell the differences and advise the conditions to use above 2 rule ?

Experts please advise.

Thanks..