You cannot "uncheck" #4. You have to choose another incorrect option. The person is an immigrant and if you choose another option, then you change his/her status. No, option #4 is correct, but Profile incorrectly instructs the husband to fill out a form RC66 Child Benefits Application, which should only be completed by the mother.
This is correct, the one applying for CCB with RC66 does not have to apply for CCR. Please review this link
https://www.canada.ca/en/revenue-agency/services/forms-publications/forms/rc66.html
Change to newcomer application form
Newcomers with children should now apply for the GST/HST credit and the Canada Carbon Rebate using Form RC151 upon arrival to Canada. Only those who meet the eligibility requirements for the Canada child benefit should use Form RC66. Find out more about eligibility at benefits, credits, and taxes for newcomers.
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