config APPLICATION
    bool
    default y
    depends on MODULE_FOO

config MODULE_FOO
    bool "The Foo"

config MODULE_BAR
    bool "The Bar"
    depends on MODULE_BAZ

config MODULE_BAZ
    bool "The Baz"

choice
    bool "Options"

config OPT_1
    bool "1"

config OPT_2
    bool "2"
    depends on MODULE_BAZ

config OPT_3
    bool "3"

endchoice