Mariya Runs a Small Cafe Where She Makes Sandwiches and Sells

Mariya runs a small cafe where she makes sandwiches and sells coffee. There isn't room for a second person so Mariya works alone. Improved growing conditions lead to lower prices for the coffee beans that Mariya buys. Mariya should

A) make fewer sandwiches and sell less coffee.
B) make fewer sandwiches and sell more coffee.
C) make more sandwiches and sell more coffee.
D) make more sandwiches and sell less coffee.
E) open a coffee bean plantation.