Some answers seems to be missing.
For example:
When were you born?
How long have your parents been in the UK when you were born?
What were their Immigration status when you were born?
Were they married when you were born?
Etc.
More information may be helpful in figuring out if you are
automatically British or
entitled to register (perhaps preferable to
Naturalisation by discretion).
But never mind. HMPO are likely to have also asked you similar questions to determine if you satisfy the relevant requirements to be a British citizen. If you agree with them, then there’s probably no point in double checking.
This is not intended to be legal or professional advice in any jurisdiction. Please click on any given
links for further information. Refer to the source of any quotes.