I can’t see the line i’m sorry
A Second Major Plot Point
<span>Speculate, in terms of the microscopic surface irregularities, about why µk<µs, and what effect a lubricant has on the coefficient of friction</span>
Let's cut the chit chat, and formalities. I'm not one for greetings or unnecessary niceties.
The answer is A.
Why?
Because a run-on consists of two or more independent clauses that are not separated by a colon or semicolon.
This is evident in Choice A