1. Arab chiefs used to quarrel without any- This made Muhammad
3. Mount Hira is also called
4 The first woman to become a Muslim was
5 The first young man to become a Muslim was
6. Among the first grown-up men to accept Islam were
and

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Khadija bint Khuwaylid

Hazrat Abu Bakr

Zayd ibn Harithah and Abu Bakr

Explanation:

Khadija bint Khuwaylid was the first woman to become a Muslim. She is the wife of Prophet Muhammad (S.A.W). Hazrat Abu Bakr was the first young man to become a Muslim. He is the close friend of Prophet Muhammad (S.A.W). Mount Hira is also called the place where Prophet Muhammad (peace be upon him) received his revelations from Allah through the angel Gabriel. Zayd ibn Harithah and Abu Bakr were the first two grown-up men that accepted Islam.

b

explanation:

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.