The answer to this question would be gloves and gown.
Clostridium difficile is a microbe that can infect the gastrointestinal tract. The most common route for their infection is hand to mouth contact, therefore it is best to protect your hand. Don't use alcohol hand rub since it can kill them, wash your hand instead.
Answer:
a. purple allele (C) = 0.609, pink allele (c) = 0.391
b. purple homozygotes = 371, pink homozygotes = 153, heterozygotes = 476
Explanation:
Given -
Purple flowers - 847
Pink flowers - 153
The frequency of recessive genotype i.e

Frequency of recessive allele i.e q is equal to

As per hardy Weinberg's first equilibrium equation -

Frequency of purple homozygous species

Number of purple homozygous species 
Number of pink homozygous species 
Heterozygous species is equal to

I think it's A....hope that helps at least