What did neurologist daniel levitin discover after examining many different studies of expertise?

Researchers working along with Doctor Levitin studied patients who were about to have a procedure. Participants were asked to either listen to music or take pills. Scientists tracked patient's ratings of their own worrying, as well as the levels of Cortisol.

The results were fascinating; the participants who decided to listen to music were more relaxed and less stressed than their counterparts who took medication.

answer

answer: a: they can affect the author’s perspective and in turn the theme and purpose for the writing.

the author's background and time period greatly affect the text that the author produces. this is because we are all a reflection of our time period and background. depending on where and when we were born, we will find some questions more important than others. for example, if we are a wealthy person born in medieval times, we will most likely be interested in courtly love and stories of knights and honour. however, if we are born in the 20th century in africa, we might instead focus on colonialism and its effects on the newly liberated countries. the theme and the purpose of writing are both affected by these conditions.

explanation:

the answer is c. loyalty can be instilled by regularly reminding people why their leader is great.

good luck pls mark brainliest!