QUESTION 
Hard
Science & Technology
Prelims 2014
Which of the following pair is/are correctly matched?
| Spacecraft | Purpose | 
|---|---|
| 1. Cassini-Huygens | Orbiting 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.
Select an option to attempt
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