a grid is usually employed in wich of the following circumstances.. when radiographing a large or dense body part

a grid is usually employed in wich of the following circumstances:

1- when radiographing a large or dense body part

2- when using high kilovoltge

3- when a lower patient dose is required

a- 1 only

b- 3 only

c- 1 and 2 only

d- 1,2 and 3