SSC JE Mechanical Engineering 2017 Set 1 Paper

Read the pairs given below:
Size of Object or distance : Length (in m)
1. Size of a proton: ${10}^{\mathit{–}15}$
2. Length of a typical virus: ${10}^{\mathit{–}8}$
3. Distance of Sun from Earth: ${10}^5$
4. Thickness of a paper: ${10}^{\mathit{–}1}$
Which of the above pairs are correctly matched?