The statements of beliefs and ideas which are considered to be true are known as:

Correct option is A

Ans. (a)
Sol. In research and theory, an assumption is a statement that is accepted as true without proof. It forms the foundation of logical reasoning or theoretical frameworks. Assumptions help define the scope and boundaries of a study or concept and are considered necessary starting points.
Explanation of each option:
· (a) Assumption – Correct answer. Accepted beliefs considered true for the purpose of study or reasoning.
· (b) Extraneous variable – Uncontrolled variables that may affect the outcome of a study.
· (c) Dependent variable – The outcome or effect measured in an experiment; not a belief.
· (d) Delamination – Refers to splitting into layers, mostly used in materials science or pathology, not related to beliefs.