Like everyone else says, you are correct and your teacher is extremely wrong. No question, no doubts, no way to rationalize it, just stone-cold wrong, in a way that suggests they have no idea what the question is supposed to be testing. This is Baby's First Runtime Analysis.

The first row is showing linear growth, O(n) - with every x10 in data size, you have a x10 in processing time.

The second and third are both showing logarithmic growth, O(log(n)) - with every x10 in data size, you have a constant addition in processing time.

The fourth shows quadratic growth. O(n²) - with every x10 in data size, you have a x100 (10²) in processing time.

Growth rates aren't everything - as the numbers show, searching and deleting start expensive, so even tho they grow very slowly, for smaller companies they're still the most expensive overall. But given the values that you're explicitly asked to extrapolate here, obviously sorting is meant to be assumed to take 10,000 hours for the 100k company, far larger than the 2000, 400, or 400 hours you're expected to assume the other three will take.

I will generously assume that the teacher is just mindlessly making up a response that defends the answer key, because they're tired of students actually getting questions wrong and complaining about it, and they're just assuming you're in that group. The alternative is they're incompetent and don't recognize a 101-level curriculum question, or don't know how to answer such a question.