The total number of people Migrated to Abyssinia in 613 AD?

The total number of people Migrated to Abyssinia in 613 AD?

A. 5
B. 10
C. 15
D. None of these

At that time, Muslims heard about a kind-hearted king of Abyssinia (now in Ethiopia and Eritrea), Najashi. On seeing the difficulties of people and cruelty of Quraysh, Muhammad (PBUH) allowed few Muslims to migrate towards Abyssinia. In 613 AD, 15 Muslims migrated to Abyssinia including 11 men and 4 women.
Prominent Muslims including Usman bin Affan, his wife and daughter of Muhammad Ruqayyah (RA), Sa’d bin Abi Waqqas (RA) and others were the part of this migration. It was the first phase of Migration to Abyssinia and known as the First Migration to Abyssinia (First Hijrah).
second migration to Abyssinia in 615 AD. This time the number of immigrants was far higher than the first one. Total 101 Muslims migrated this time to Abyssinia that include 83 men and 18 women. Ja’far bin Abi Talib (RA) was the head of this group of immigrants.