Answer:
e) The term "self-confidence" cannot be defined.
Step-by-step explanation:
The term self-confidence can be narrowed down to actions that can be measurable, when doing an experiment you have to have something that can be measured, the term "Self confidence" can“t be measured and is subjective, what one people say reflects Self-confidence others wont. The experimental flaw that Kirk made was basing his experiment on subjective terms.