Pico Duarte is the correct answer because it is the highest mountain in the Dominican Republic. Located in the Cordillera Central mountain range, Pico Duarte stands at an elevation of 3,098 meters (10,164 feet) above sea level. It is a popular destination for hikers and offers stunning views of the surrounding landscape. The other options mentioned, La Pelona, Pico Alto, and Everest, are not the highest mountains in the Dominican Republic. Therefore, the correct answer is Pico Duarte.