What best describes how the testing of the initial version and the testing of the beta version fit into the four stages of the process of technological design

The Testing of the initial version is carried out in the third stage to determine what needs to be improved, while the testing of the beta version is carried out during the fourth stage to ensure that all necessary criteria are met.

The process of technological design involves several distinctive processes which can be broken down into four stages.

The four stages involved in the  process of technological design are :

hence the testing of the initial version is to determine what needs improvement while the testing of the beta version is to ensure all criteria are met

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C. The initial version is tested during the third stage to determine what needs to be improved, and the beta version is tested during the fourth stage to ensure that criteria are met.

Explanation:

Edge 2021

i'm assuming that the correct answer is indeed the first one/ "a"..