A) i think is the correct answer
Answer:
There is a 44.16% probability that exactly 1 of the tested bottles is contaminated.
Step-by-step explanation:
is the number of different combinatios of x objects from a set of n elements, given by the following formula.

In this problem, we have that:
Total number of combinations:

Desired combinations:
It is 1 one 5(contamined) and 2 of 17(non contamined). So:

What is the probability that exactly 1 of the tested bottles is contaminated?

There is a 44.16% probability that exactly 1 of the tested bottles is contaminated.
3 4/5
=3.8
3 5/6
=3.8333333333333...
3.95
Therefore, 3 4/5 is the smallest of the three numbers.
Keep change flip then simplify or divide if needed