I may be wrong, BUT here is what i think
b) line graph
d) pie graph
Define variables
left is l
right is r
Ask input
left or right
Ask input value
Equate l or r to the input value
Show ladder with steps equal to input value and in the side of input variable
Answer:
Creates items using page layout skills
CVP Chart.
Source: "New Perspectives on Microsoft Excel 2010: Comprehensive" by June Parsons, Dan Oja, Roy Ageloff, Patrick Carey.