Respuesta :
None of the sentences start with a capital letter, so technically none of them are correctly punctuated :p
Your answer is this one:
"The kids in my class want to become more self-sufficient."
:)
Your answer is this one:
"The kids in my class want to become more self-sufficient."
:)
The answer to your question would be that the sentence that has correct a punctuation is the following one: The kids in my class want to become more self-sufficient.
The option with the hyphen is the correct option because when the word "self" is used in compound nouns or adjectives, a hyphen is always required between "self" and the second half of the word.