In a certain code language, if orange is called apple, apple is called grapes, grapes is called watermelon, watermelon is called chikoo, and chikoo is called orange, then which of the following is orange in color?

apple

WORD                        IS CALLED

ORANGE                    APPLE.

APPLE                       GRAPE

GRAPE                      WATERMELON

WATERMELON          CHIKOO

CHIKOO                    ONION

SO 'ORANGE'  IS CALLED 'APPLE'