Answer:
D. Discarding data that does not fit with your personal expectations.
Step-by-step explanation:
One of the ways in which bias can be introduced into an experiment is by discarding data that does not fit with one's personal expectations.
Bias in an experiment is the process whereby scientists alter the results of their experiment to achieve their own expected results.
- Anomalous values defined by one's expectation can make an experiment highly biased.
- A scientist is supposed to be objective in their experimental approaches.