Which option correctly fixes the sentence about digital photography to avoid a run-on?

• A. photography, because digital photography does not require access to chemicals or a darkroom
• B. photography because digital photography does not require access to chemicals or a darkroom
• C. photography; because digital photography does not require access to chemicals or a darkroom
• D. photography, because digitalphotography does not require access to chemicals or a darkroom

Answer: (A)

Separating a dependent clause from the preceding element with proper punctuation creates a natural pause and stops the sentence from running on. Here, putting a comma after the word photography gives a clear break before the reason clause introduced by because, so the sentence reads as a lead-in followed by an explanatory clause. This punctuation choice aligns with how we handle a noun or short phrase that precedes a reason clause, keeping the meaning intact and the sentence smooth.

The other options either remove the necessary pause, use punctuation (like a semicolon) in a way that doesn’t fit a dependent clause, or contain a typographical error (digitalphotography) that breaks the word.