Which of the following pair is/are correctly matched?

Which of the following pair is/are correctly matched?

Spacecraft                           Purpose

1. Cassini-Huygens  Orbiting the Venus and transmitting data to the Earth

2. Messenger            Mapping and investigating the Mercury

3. Voyager 1 and 2    Exploring the outer solar system

Select the correct answer using the code given below.(2014)

a) 1 only

b) 2 and 3 only

c) 1 and 3 only

d) 1, 2 and 3

Answer: B

Cassini-Huygens: study the planet Saturn and its system