Institution: Bangladesh Bank Exam: Officer (Cash) -Sonali Bank | BD Development | BD Krishi Bank - 12.10.2018 ||
Topic: International General Knowledge, Subject: International GK (আন্তজার্তিক বিষয়াবলী)

Best Answer Explained in Below-:

The correct answer to the question about the civilian airport of highest altitude is **B) China**, specifically referring to the Daocheng Yading Airport. Located in the Tibet Autonomous Region of China, this airport sits at an altitude of approximately 4,411 meters (14,472 feet) above sea level, making it the highest civilian airport in the world.

China's diverse geography includes numerous high-altitude regions, particularly in Tibet, where the terrain reaches some of the highest peaks on Earth, including Mount Everest. Daocheng Yading Airport was inaugurated in 2013 and was designed to facilitate access to the scenic Yading Nature Reserve, enhancing tourism in the area.

While Nepal and India also have high-altitude airports, such as Nepal's Lukla Airport and India's Leh Airport, they do not surpass the altitude of Daocheng Yading. Given this context, it's clear that the correct answer is indeed **B) China** due to the superior elevation of its airport, underscoring the unique challenges and engineering feats involved in constructing infrastructure at such heights.