Which of the following statements best describes how biological science has developed over time?

(NO LINKS PLEASE I NEED ACTUAL HELP)

A. Biological science is complete. All scientific knowledge has been
discovered

B. Each new idea builds on observations and experimentation made
by scientists around the world and throughout time.

C. Each new idea proves all previous observations and
experimentation to be inaccurate.

D. Scientific knowledge is recent. Our current understanding is based
on observations and experiments performed within the past 25
years.