Ais easily recognized, as it has numbers that range from a minus end to a corresponding plus end, with or without a zero as the midpoint.

a. semantic differential scale
b. nominal scale
c. likert scale
d. stapel scale

stapel scale

Explanation:

In simple words,  The staple scale is characterized as a grading scale close to a standard (uni polar) adjective, designed to collect perspectives from the participant on a particular topic or case. The survey topic is made up of an even number of non-neutral-point answer choices.      

This scale was given the name after Jan Stapel, its designer. Because it's an un-comparative and unambiguous measure, it renders it very identical to a rhetorical differential level except the only distinction becoming the involvement of the only adjective here between the good and bad classification rather than getting two dissenting adjectives.                  

107x106 is the answer