$1.$ Indicate which of the following statements about activity$-$based costing is true.

a$.$ An organization must choose whether to use job costing, process costing, or activity$-$based costing.

b$.$ An organization can use activity$-$based costing with job costing but not with process costing.

c$.$ An organization can use activity$-$based costing with process costing but not with job costing.

d$.$ An organization can use activity$-$based costing with job costing and with process costing.

$2.$ In which of the following cases is activity$-$based costing most likely to be beneficial?

a$.$ When an organization produces only a small number of different products and has a large amount of direct costs.

b$.$ When an organization produces only a small number of different products and has a large amount of indirect costs.

c$.$ When an organization produces many different products and has a large amount of direct costs.

d$.$ When an organization produces many different products and has a large amount of indirect costs.