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

correct the text by inserting one comma. (note: in this skill, serial commas are not optional.) after nan wood graham posed for the painting american gothic some viewers called her the american mona lisa.
Answer
Answer:
After Nan Wood Graham posed for the painting American Gothic, some viewers called her the American Mona Lisa.
Brief Explanations:
The comma is inserted after "Gothic" to separate the introductory dependent - clause "After Nan Wood Graham posed for the painting American Gothic" from the independent clause "some viewers called her the American Mona Lisa".