Answer:
c
Explanation:
The nile did flood which watered the soil.
The answer is letter A.
Tokugawa’s sons controlled the cities of Mito, Wakayama, and Nagoya. The Tokugawa clan<span> is considered as one of the powerful family during their era. <span>The Tokugawa family consists of three houses, this includes the Mito, Owari (Nagoya city), and the Kishu (Wakayama city).</span></span>