All the following except one led to the re-emergence of old trade patterns under Omani rule?

A. availability of capital from India
B. increased demand for slaves
C. attack on the Portuguese in the 1640s
D. willingness of Africans in the interior to take slaves to the coast

Correct Answer: Option C

C. attack on the Portuguese in the 1640s

Explanation

Attack on the Portugese in the 1649s is the correct answer as this attack was carried as a revenge on the Portuguese who had sought to control their strategic position of the Straits of Hormuz at the entrance of the Persian Gulf.