Answer:
Option b is correct
.
Step-by-step explanation:
Domain is the set of all possible values of x where function is defined.
Given the function:

To find the domain of the given function:
Exclude the values of x, for which function is not defined
Set denominator = 0

By zero product property;
and 
⇒x = 0 and 
⇒x = 0 and 
Therefore, the domain of the given function is:

You need to show us the bar model
Difficult to sell
Explanation
There are many factors that limit the mobility and they are contributed by factors such as disease and accidental factors and there are many persons with disabilities
Many changes must be done with the layout of the home so if a house is designed with limited mobility it is very difficult to sell. Each and every different mobility homes have certain specifications and different accommodations.
The yards must be designed with mobility issues and they must create a stable and a wide pathway and these are much essential for wheel chair access