Beginning in acts 16, luke's frequent use of "we" reflects his:

personal experience

orderly account

investigative bent

physician's perspective

detailed description

or narrative structure

(this is bible : 3)

The correct answer is option D "Physician's perspective"

Most of the Lukes’s terminologies were inspired from medical terminologies as he was a physician himself. His frequent use of  “We” in the acts represents  the moral agenda irrespective of actual presentation of his thought. In the antique historical works earlier published , the use of we restricted to retain the sensitivity of the works/observations in the first century work.

one centimetre is equal to 0.01 metres