Which of the following statements are correct? (El Nino)

Which of the following statements is/are correct?

1. The jet streams are high altitude easterly winds.
2. El Nino is a warm ocean current.
3. El Nino appears along the Peru coast.

Select the correct answer using the code given below.

1. 1 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3