New Mexico is rich in remarkably well-preserved ruins, such as the multi-storied adobe “pueblos to provide visitors with insight into” the lives of early inhabitants of the Southwest.
(a) pueblos to provide visitors with insight into
(b) pueblos, providing visitors with insight for
© pueblos, they provide for visitors an insight of
(d) pueblos that provide visitors with insight into
(e) pueblos and provide visitors insight to
Can someone explain why the answer is d? Why is it wrong to use “to” and right to use “that”?