correct the text by inserting one comma. (note: in this skill, serial commas are not optional.) um i cant…

correct the text by inserting one comma. (note: in this skill, serial commas are not optional.) um i cant read this grocery list because your handwriting is completely illegible.
Answer
Brief Explanations:
A comma is needed to separate the introductory word "Um" from the main clause.
Answer:
Um, I can't read this grocery list because your handwriting is completely illegible.