B. Suzie, my best friend, is also an
<span> amazing athlete is free from comma errors. Commas should always surround subordinate phrases such as "my best friend" when used for clarification. </span>
A should have a comma after the word "state," C should have a comma after "Morrish," and D should not have a comma after "told." B is the correct answer.
A. variable factor. <span> In production, a flexible factor that can change in amount or usage is a variable factor. An example of a variable factor of production is labor. </span>
