The sentence below
Because music causes the release of feel-good hormones, students are more likely to think positively about their schoolwork if they can listen to their favorite artists during class time.
A. Does not need a citation
B. Needs a citation
B. Needs a citation
B. Needs a citation
Based on the information provided, the sentence does not need a citation.
To determine if a sentence needs a citation, you should consider whether the information presented is common knowledge or if it is a specific claim that requires evidence or support from a reliable source. In this case, the sentence is stating a general cause-and-effect relationship between music and the release of feel-good hormones, as well as the potential impact on students' attitude towards schoolwork.
This cause-and-effect relationship is widely recognized and supported by scientific research on the effects of music on mood and psychological well-being. It is generally accepted that music can have a positive impact on individuals and can elicit the release of hormones like dopamine, which are associated with feelings of pleasure and happiness. Therefore, this information can be considered common knowledge and does not require a citation.