Which of the following are examples of limited resources on the part of consumers?

product and space

money and product

time and money

space and time

The focus of the question is on "the part of the consumers" - which means that we need to consider what is available to the consumers.

Consumers don't produce - so "products" are not resources that are typically available to them.

The resource most typical to consumers is "money" - so the answer is "time and money"