Social media can be appropriate for conducting exploratory and descriptive research but not causal research

The above design is an example of a multiple time series design

Indicate whether the statement is true or false

Larry's Fish Market buys salmon (S) for $5 per pound and a local whitefish (W) for $3.50 per pound. Larry wants to minimize his cost, but he cannot spend more than $160. The objective function that minimizes these costs for Larry is:

A) 5S + 3.5W ? 160. B) Min 5S + 3.5 W. C) Max 5S + 3.5 W. D) Min 5S + 3.5W ? 160.