Which sentence is punctuated correctly?

  • Our dress code: at school is as follows—red or white shirts, khaki pants, and brown shoes.Our dress code: at school is as follows—red or white shirts, khaki pants, and brown shoes.
  • Our dress code at school is as follows, red or white shirts: khaki pants, and brown shoes.Our dress code at school is as follows, red or white shirts: khaki pants, and brown shoes.
  • Our dress code at school is as follows: red or white shirts, khaki pants, and brown shoes.Our dress code at school is as follows: red or white shirts, khaki pants, and brown shoes.
  • Our dress code at school is as follows; red or white shirts, khaki pants: and brown shoes.