Table $4-5$

The table below shows the quantities demanded of cases of Mt$.$ Dew per month by four fumilies at various pni

$\backslash$table$[[\backslash$table$[[$Price of Case of$],[$Mr$,$ Dew$]],\backslash$table$[[$The Adaus$],[$Family$]],$The Joaes Family,$\backslash$table$[[$The Suith$],[$Family$]],\backslash$table$[[$The Willams$],[$Family$]]],[57,15,12,14,],[59,8,12,10,10],[510,7,9,8,6]]$

Refer to Table $4\mathrm{.}5.$ Which of the following could caive all four tanilies to demand mote Mat. Dewat all pricen?

Select one:

a$.$ The pice of ratar decreaiei.

b$.$ The technology for buting carbotuted berenapes ingroves

c$.$ All four family meomer unctease, and Mar. Dewis a normal mond