Answer:
C. Isoquants will become much flatter.
Step-by-step explanation:
An isoquant which from Latin maeans "equal quantity"can be regarded as counterpart of the consumer's indifference curve of a company, it is curve which shows some kind of consistent amount of output. It can be known with it's negative slope. With isoquant all the inputs that gives rise to the same level of output can be known
Therefore, in a case whereby robots become increasingly good at doing manual and mental labor then a typical isoquant will become much flatter.