The given figure shows the electric field lines due to two charges $q_1$ and $q_2$. What are the signs of the two charges?

• A
  $q_{1}$ is positive but $q_{2}$ is negative
• B
  $q_{1}$ and $q_{2}$ both are negative
• C
  $q_{1}$ is negative but $q_{2}$ is positive
• D
  $q_{1}$ and $q_{2}$ both are positive