None of the 4 options are appropriate.
The only requirement for salvation is after receiving the call, is to believe or exercise faith in Christ and what He performed on the Cross.
Any believer might be a member of any of the denominations mentioned, or simply nondenominational.
The real challenge is to remain in faith in Christ in all things,...keeping our accounts short, continually praying to Him.
When is the last time any reader of this post, thought things through faith in Christ, vice by his/her personal soul, but instead through Christ?
What does salvation have to do with my post?