Child Benefit Form Question 24 and Question 66

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Dear All

My wife and my daughter got their ILR in March 2016 (Based on 10 years LR). They are Pakistani Nationals.
They both are residing in UK whereas i live in Pakistan due to my work commitments and i am not on ILR or any other UK status.

Now we are thinking of applying for Child Benefit (in the name of my Wife who is in UK on ILR) and are stuck at

a. Question 24 (What is your marital or civil partnership). Which option (1. Married or civil in partnership, 2. Living with a partner as if you are married or a civil partner, 3. Widowed, 4. Separated, 5.Divorced, 6.Single) we tick considering that we are married and we live in different countries.

also which option to select in

b. Question 66 (I am a single parent). Is this right option.

c. Will this affect their future naturalization or my Entry clearance request to join them at a later stage.

Very Many thanks for reading through and any help you can provide please.