Correct spelling


Correct spelling, explanation: this is the correct spelling due to the consonant-vowel-consonant rule, according to which we double the last consonant if a word ends with such a combination. Submit ends with consonant-vowel-consonant, therefore t is doubled and the correct form is submitted, which makes submited an incorrect spelling.

Definition of submitted:
verb, past simple and past participle form of the verb submit, to give, to present
I submitted my resume to that company yesterday. I hope they will invite me to an interview.
You should submit projects for the competition due 7th July.

Incorrect spelling


Incorrect spelling, explanation: submited is incorrect, as the word submit ends with the consonant-vowel-consonant combination. In such situation, we double the last consonant when adding a suffix. Therefore submitted is the correct form.