Question

question 2: if arthur needs to store a terabytes, what is the least expensive plan?
cost
least expensive plan for a:
no plan
basic plan
premium plan
either no plan or basic plan
either basic plan or premium plan
either no plan or premium plan

Explanation:

Looking at the cost graph, for storage amount A, the "No plan" (dotted line) has the lowest cost among the three options, as its line is positioned the lowest at the x-value of A compared to the Basic and Premium plan lines.

Answer:

No plan