Germanic tribes such as the Franks, Ostragoths, Vandals and the Visigoths were surrounding it and weakening it by spreading into their territory, and also it was having internal governmental issues and struggles for consolidation of power.
Olayinka Herbert Samuel Heelas Badmus Macaulay (14 November 1864 – 7 May 1946) was a Nigerian nationalist, politician, surveyor, engineer, architect, journalist, and musician and is considered by many Nigerians as the founder of Nigerian nationalism.
The map is pointing to the middle colonies, but the middle colonies consisted of PA, NJ, Delaware etc, but the arrow is specifically on New Jersey so I would assume New Jersey.
B is your answer
Hope this helps :)