$.$ This question has more than one correct answer and all must be selected.

Select all the statements that are true.

$$ Labour cost and labour availability often drive the location decision in the call centre industry.

$$ Service firms choose locations based, in part, on the revenue potential of a site.

$$ The graphic approach to location break$-$even analysis displays the range of volume over which each location is preferable.

$$ The centre$-$of$-$gravity method finds the location of a centralized facility, such as a distribution

centre, that will maximize the organization's revenue.

$$ The transportation model calculates an optimal shipping system between a central facility and several outlying customers.