Respuesta :
i'm not sure what your book is saying about the matter but a cell phone is not usually an essential expense. If it is saying it is though, it would be an essential flexible expense.
Answer:
a. Essential (flexible) expense
Step-by-step explanation:
Most people consider a cell phone an essential expense, since they are used in power outages or emergencies while traveling.
This is a flexible expense, since there are extra fees for extra usage.