Unsupervised learning occurs when systems like Google's Neural Machine Translation can operate independent of programers. Which rule can be used to correct the spelling of the underlined word?
O A. Change y to i when adding an ending,
B. Use i before e except after c.
C.
Double the final consonant when adding an ending that starts with a vowel.
D.
Drop a final e when adding an ending that begins with a vowel.