The South East Asia Treaty Organization or SEATO was created in part of the outcome of the Korean War. SEATO is an international organization that aims to have a collective defense. The treaty was signed in Manila, Philippines in September of 1954. The answer would be letter B.
The first country to have adopted time zones was New Zealand, than still part of the British Empire, in the second half of the nineteenth century, or more specifically on November 2 in 1868. It was based on the longitude of 172° 30' East of Greenwich, which is 11 hours and 30 minutes ahead of the GMT.
Leonardo da Vinci. It is his most famous and valuable painting ever.