Identify the most appropriate test to use for the following situation:

A national computer retailer believes that the average sales are greater for salespersons with a college degree. A random sample of 14 salespersons with a degree had an average weekly sale of $3542 last year, while 17 salespersons without a college degree averaged $3301 in weekly sales. The standard deviations were $468 and $642 respectively. Is there evidence to support the retailer's belief?

a)One samplettest

b)Matched pairs

c)Two samplettest

d)Two sampleztest