Child dependent visa

I am on care visa from last on year.Now i applied for my wife and child dependent visa .
I think i made a mistake during visa application.
There is option where it says in travel section of application.of my wife and child both
"Are you travelling with someone who is not your partner or dependent ". I choose No.
I think i should select yes .because both are travelling together .
Now home office send me mail for my child visa(my wife did not get mail yet) for additional information which I am not understanding.which is
"The UK Decision Making Centre is currently assessing the application submitted by the above named. We are unable to conclude the application at this time as we require additional information.

Your application is being assessed under paragraph SW 32A.1 with reference to CHI3.1 to CHI3.2 of Appendix Children The Immigration Rules require that the applicant's parents must each be either applying at the same time as the applicant or have permission to be in the UK (other than as a visitor) unless:

(a) the parent with permission as a Skilled Worker is the sole surviving parent; or
(b) the parent with permission as a Skilled Worker has sole responsibility for the child's upbringing; or
(c) the decision maker is satisfied that there are serious and compelling reasons to grant the child entry clearance or permission to stay with the parent who has permission as a Skilled Worker.

You have confirmed your (mother/father) has not made an application for leave to enter the UK as they will remain in (COUNTRY). You have also confirmed both your parents have parental responsibility for you.

Please provide any further evidence, information or documents you would like to be considered in line with point (c) above.

So what they are asking?