Q)1. A "calendar stick" carved centuries ago by the Winneba tribe may provide the first evidence that the North American Indians have developed advanced full-year calendars basing them on systematic astronomical observation.
[A] that the North American Indians have developed advanced full-year calendars basing them
of the North American Indians who have developed advanced full-year calendars and based them
[C] of the development of advanced full-year calendars by North American Indians, basing them
[D] of the North American Indians and their development of advanced full-year calendars based
[E] that the North American Indians developed advanced full-year calendars based
[A] that the North American Indians have developed advanced full-year calendars basing them
of the North American Indians who have developed advanced full-year calendars and based them
[C] of the development of advanced full-year calendars by North American Indians, basing them
[D] of the North American Indians and their development of advanced full-year calendars based
[E] that the North American Indians developed advanced full-year calendars based
