A Ground-Based Telescope Is Pointed at the Atmosphere of Titan

Multiple Choice

A ground-based telescope is pointed at the atmosphere of Titan and a spectrum is made.The spectral lines observed in this spectrum

A) can only be features of Titan.
B) can be characteristic of Earth's atmosphere as well as Titan's atmosphere.
C) can be characteristic of the cooler,outer layers of the Sun's atmosphere as well as of Titan's atmosphere.
D) can be characteristic of the atmospheres of Titan and Earth and also of the cooler,outer layers of the Sun's atmosphere.