option a is the correct answer
When deciding whether or not to escalate commitment to a chosen course of action, our choice should depend on: the expected value of the further investment.
Commitment bias, also known as commitment escalation, describes the tendency to stick to past actions, especially those that have been publicly demonstrated, even when they don't produce the desired outcome.
The main reason for this is an unwillingness to admit that previous decisions were wrong. We, therefore, encourage you to check the accuracy of these previous decisions by doing more to support them. Engagement escalation occurs because our thinking is not rational.
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