Which of the following is a run on sentence

Hello!
The answer is Option A.
Run-on sentences are two short sentences put together without being properly connected.
"They were expensive combs" and "her heart had simply craves and yearned over them" are two short sentences that are put together.
Hope it helps!
If you have any questions, feel free to ask me!
~A gloomy gal
[tex]MagicalNature[/tex]