An example of technological change is

Part $2$

A$.$

a firm rearranging

the layout of a retail store to increase salesthe$$layout$$of$$a$$retail$$store$$to$$increase$$sales$.$

B$.$

a firm installing faster or more reliable machinery or equipmenta$$firm$$installing$$faster$$or$$more$$reliable$$machinery$$or$$equipment$.$

C$.$

a hurricane damaging firm facilitiesa$$hurricane$$damaging$$firm$$facilities$.$

D$.$

both a and b

E$.$

all of the above.