Consider the following statements about the High-Altitude Pseudo-Satellite vehicle (HAPS):
1. HAPS is a still-developing technology and NASA has successfully completed the first test flight recently.
2. HAPS can fly at altitudes of 18-20 km from the ground.
Which of the statements is/are correct?
1
1 only
2
2 only
3
Both 1 and 2
4
Neither 1 nor 2