Suppose there are only three things you can do rather than attend a community social

event, and you can do at most one of them:

read a novel which you value at $$9$ worth of satisfaction,

do some studying, which you think will lead to $$2$ worth of satisfaction, or

watch videos with some friends, which you value at $$7$ worth of satisfaction.

If you have to buy a ticket to the social event, and this ticket costs $$5,$ then your

economic cost of the social event is:

Select one:

a$.$ $$14$

b$.$ $$5$

c$.$ $$9$

d$.$ $$23$