I think portraits and landscapes.
Answer:
D
Explanation:
Determine the required yield of the recipe by multiplying the new number of portions and the new size of each portion. Find the conversion factor by dividing the required yield (Step 2) by the recipe yield (Step 1). That is, conversion factor = (required yield)/(recipe yield).
A= 2
B= 3
C= 1
That's the most simple way to put it