Read the following directions carefully and answer the questions and mark as follows:
There are four envelopes $E_{1}, E_{2}, E_{3}, E_{4}$ in which one was supposed to put letters $L_{1}, L_{2}, L_{3}, L_{4}$ meant for person $C_{1}, C_{2}, C_{3}, C_{4}$ respectively but by mistake the letters got jumbled up and went in wrong envelopes. Now if $C_{2}$, is allowed to open an envelope at random, then how will he identify the envelope containing the letter for him?
1. $L_{2}$ has been put in $E_{1}$.
2. The letter belonging to $C_{3}$ has gone in the correct envelope.
- If any one of the statements alone is sufficient to answer the question.
- If both statements individually are sufficient to answer the question.
- If both statements together are required to answer the question.
- If both statements are not sufficient to answer the question.