answer is c . it is a relative clause describing the qualities of the brownies
Answer:
<h2>vvvv</h2>
Explanation:
Scientists typically do their most creative work before the age of forty. It is commonly thought that this happens because aging brings about a loss of creative capacity. However, studies show that scientists who produce highly creative work beyond the age of forty, a disproportionately large number entered their field at an older age than usual. Since by the age of forty the large majority of scientists have been working in their field for at least fifteen years, the studies findings strongly suggest that the real reason why scientists over forty rarely produce highly creative work is not that they have aged but rather that scientists over forty have generally spent too long in their field.
