Respuesta :
Answer: A. Scientists should always report their observations and results truthfully.
Explanation:
The scientific experiment is a fact finding approach which is performed in a step by step orderly manner so as to answer questions related to science. Any bias like skipping the protocol, use of desired equipments, manipulating the observation and results cannot be considered scientifically sound.
According to the given situation, the two scientist might have made manipulation in observation and results which cannot be considered as scientifically sound.