Hi, I'm struggling to answer this question can u help please?

If fixed costs are positive, and variable costs are increasing, then the total average costs are: Oa. None of the other answers is correct Ob. First decreasing and then increasing, always greater than the variable cost Oc. First decreasing and then increasing, and intersect the variable cost curve in its minimum Od. Always decreasing and larger than the variable cost Oe. Always increasing