The best punctuation is that of which the reader is least conscious; for when punctuation, or lack of it, ................. itself, it is usually because it .................
Show Hint
Punctuation should generally not draw attention to itself; when it does, it disrupts the reading experience. Look for words that convey interruption or discomfort when dealing with punctuation.
The sentence requires two words that imply that the punctuation either intrudes or disrupts the reading experience. "Obtrudes" and "offends" both fit this meaning. "Obtrudes" means to become noticeable in an undesirable way, and "offends" indicates a disruption or discomfort caused by the punctuation. Thus, Option (1) is the Correct Answer.
\[
\boxed{1}
\]