Sam works at a sales firm in a team catering to East Coast customers. His manager wanted to incentivize them to improve their sales by $10$ percent in the next quarter. If they reach their goal, Sam$$s manager will reward them with a team bonus. Sam$$s manager knows that there is a chance this goal may lead to all the following behaviours EXCEPT: a$.$ Increase in unethical behaviour b$.$ Decline in adaptability c$.$ Competition within the team d$.$ Decrease in learning