Question

information obtained from experiments must be:
○ recorded
● previously known
○ memorized

Explanation:

In scientific experiments, the information obtained (data, observations) must be recorded to document results accurately for analysis, replication, or further study. "Previously known" is incorrect as experiments aim to discover new info or test hypotheses, not use pre - known data. "Memorized" is unreliable and not a standard practice in scientific experimentation. So the correct option should be "recorded".

Answer:

A. recorded