What Type of Rating Scale Is the Following

Multiple Choice

What type of rating scale is the following?
Please assign a total of 100 points to the following characteristics
For purchasing an airline ticket in terms of how important each of these
Factors is to you in making your decision to buy a ticket?
_____ Price
_____ Number of stops
_____ Comfort of the seats
_____ Courtesy of the flight attendants
_____ Pilot comments during the flight

A) Stapel scale
B) Balanced scale
C) Semantic differential scale
D) Forced choice scale
E) Constant sum scale