Answer:
Alright.
Explanation:
Salary per Week: $4,800 (assuming they work 5 days a week and make $40 per hour)
Salary per Month: $29,760 (assuming they work 5 days for a solid month)
Salary per Year: $67,300 - $130,330
The answer is A; all of the above
Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.
C. Mutualistic relationship
Flowers and hummingbirds have a mutualistic relationship where both benefit. Flowers produce food in the form of nectar (sugar and water) to attract hummingbirds which, in turn, move pollen for the plant (pollination).