The incorrectly punctuated sentence is A. We went to the store but we forgot to buy eggs.
<h3>What is a punctuation?</h3>
This is known as the use of spaces, signs and the use of various typographical tools to aid the understanding and correct reading of a written text.
Hence, we can see that the option A is incorrectly punctuated because the sentence is without a comma. The comma should come right after the word <em>store</em> as that is a simple sentence, to correctly make it a compound sentence, a comma is added and the rest of the sentence follows.
Read mote about <em>punctuation</em> here:
brainly.com/question/1224394
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