General Knowledge

Philadelphia is known as the "Quaker City" because it was founded by William Penn, a Quaker, and has a strong historical association with the Quaker movement.

The opossum has the shortest known gestation period among mammals, lasting only about 12 to 13 days, which is much shorter than cats, elephants, or mice.

Christopher Columbus was an Italian explorer who is credited with discovering America in 1492 while sailing under the Spanish crown. Therefore, the correct nationality is Italian.

Scandinavian countries traditionally refer to three countries: Denmark, Norway, and Sweden. These three share historical, cultural, and linguistic ties that define the Scandinavian region.

The book 'A Nation in Chains' was written by Ayaz Latif Palejo, a prominent Pakistani politician and writer. The other options are notable figures but did not author this book.

Holstein cows are known worldwide for their high milk production, yielding more milk on average than Sahiwal, Red Sindhi, or Jersey breeds. This makes Holstein the breed with maximum milk yield among the options.

Anaximander, an ancient Greek philosopher, is credited with creating one of the earliest known maps of the world, making option A correct. The other options do not have historical claims to this achievement.

Adam Smith wrote the book titled "An Inquiry into the Nature and Causes of the Wealth of Nations," commonly referred to as "An Inquiry into the Nature." This work is foundational in economics, making option B correct.

NATO stands for the North Atlantic Treaty Organization, which was established by the Washington Treaty signed in 1949. Therefore, NATO is also known as the Washington Treaty.

"My Life" is the title of the autobiography of Barack Obama, the 44th President of the United States. The other options have different autobiographies or memoirs with different titles.