A diner has to choose among five possible technologies for making oatmeal $($shown below$).$ The inputs are oatmeal mix and water.Yesterday, they were using technology $C.$ Last night, however, the price of oatmeal mix rose $37\%.$ The price of water also rose $37\%.$ Everything else stayed the same, and the diner owners decided to continue with oatmeal on their menu. Which technology is going to be used today to make oatmeal.

Description of technology to make one unit of oatmeal:

Technology A: $7$ units of oatmeal mix and $3$ units of water

Technology B: $6$ units of oatmeal mix and $4$ units of water

Technology C: $5$ units of oatmeal mix and $5$ units of water

Technology D: $4$ units of oatmeal mix and $6$ units of water

Technology E: $5$ units of oatmeal mix and $7$ units of water

B

D

Not enough information to tell.

A

E

C