Which sentence is punctuated correctly? i’ve lived in; tulsa, oklahoma; littleton colorado, a suburb of denver; and austin, texas. i’ve lived in tulsa, oklahoma, littleton, colorado, a suburb of denver, and austin, texas. i’ve lived in tulsa, oklahoma; littleton, colorado, a suburb of denver; and austin, texas. i’ve lived in: tulsa, oklahoma: littleton colorado, a suburb of denver: and austin, texas.