Why is professional development especially important in health science careers? because new medical findings and improvements in procedures are constantly being introduced because there are many branches of health science and people switch careers very often because it is an unstable profession and it is important to have options for other careers because it is the only way for medical professionals to get promoted

Explanation:

Professional development is learning to earn or maintain professional credentials such as academic degrees to formal coursework, attending conferences, and informal learning opportunities situated in practice. It has been described as intensive and collaborative, ideally incorporating an evaluative stage.Professional development is especially important in health science careers, because new medical findings and improvements in procedures are constantly being introduced. Many health science careers require that employees commit to regular professional development to stay employed.

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i agree d is most definitely correct!