Recent Analysis of Phytoliths Has Suggested That

Recent analysis of phytoliths has suggested that:

A) The banana arrived with Indonesian sailors on the East African coast around 200-500 CE.
B) Indian Ocean connections between East Africa and Southeast Asia could stretch back to the fourth millennium BCE.
C) Banana species evolved independently with no contact between Southeast Asian and East African varieties.
D) Bananas, yams, and rice traveled eastward from Africa to Asia at some point in the distant past.