Does this grammar have any recursion or implied iteration that should be denoted by brace $?$

Yes

Write the new line for this recursion or implied iteration change or write NA if not applicable. Do not use spaces and use $->$ for the arrow

Does this grammar have any multiple$-$choice options that should be denoted by parentheses and the OR operator?

Yes

Write the new line for this multiple$-$choice change or write NA if not applicable. Do not use spaces and use $->$ for the arrow.

Does this grammar have a line that could be a combination of the above options that should be denoted by brackets, braces, parentheses and the OR operator?

Yes

Write the new line for this combination change or write NA if not applicable. Do not use spaces and use $->$ for the arrow.