The correct answer is option 2, indicating that statements 2 and 3 are correct.
Statement 1: The jet streams are high altitude easterly winds - This statement is incorrect. Jet streams are fast flowing, narrow air currents found in the atmosphere at around 9 km above the surface of the Earth. They are predominantly west to east, not easterly winds.
Statement 2: El Niño is a warm ocean current - This is correct. El Niño is a climate pattern where the sea surface temperature in the central and eastern tropical Pacific Ocean is higher than average.
Statement 3: El Niño appears along the Peru coast - This is also correct. El Niño events usually form in the Pacific Ocean, and they can have a big impact on the weather in South America, including the coast of Peru, causing higher than usual rainfall.
Therefore, the statements 2 and 3 are correct, making option 2 the correct answer.