Which one of the following statements is correct? (i) A more reactive metal can displace a less reactive metal from its salt solution. (ii) Copper can displace magnesium from its salt solution. (iii) Magnesium can displace copper from its salt solution, (iv) A less reactive metal can displace a more reactive metal from its salt solution.

• A. (i) and (ii)                      
• B. (ii) and (iv)
• C. (i) and (iii)         
• D. (iii) and (iv)
• E. None of these