According to thomas kuhn, scientists accept a prevailing paradigm in "normal science" and attempt to articulate it by

- Refining its theories and laws.

- Solving various puzzles.

- Establishing more accurate measurements of constants.

Explanation:

Thomas Kuhn, the famous American philosopher as well as physicist in his famous work titled 'The Structure of Scientific Revolution published in 1962 proposed the revolutionary concept of 'paradigm shift'.

According to Kuhn, a prevailing paradigm is accepted and revealed by scientists regularly through observation, speculation, and examination. It involves 'refining or improving the theories and laws proposed in the existing paradigm', 'solving the puzzles associated with it' and 'the establishment of more accurate measurements of constants'. These three steps assist in challenging the existing paradigm and anomalies associated with it that eventually opens the door for a shift in the existing paradigm(if the challenges related to anomalies are not sorted out effectively).

answer: a

explanation: