<span>A) Here is what my mother said to me, at least once: "Jerry, you've got to try a little harder."
Since the quotation from his mother is set off from the rest of the sentence, not continuing it, a colon is appropriate. Additionally, the comma before "at least once" is correct and after "Jerry" is also correct. </span>
In order to make your ideas and support for your ideas of the argument you are claiming.
I would go with A! I think that’s the best answer!
"He rolls them with delighted motion,
Joy-tides swell their mimic ocean."