A student sketches the electric field pattern for two identical positive charges kept a fixed distance apart. The sketch has the following features:
(i) Lines originate on each charge and terminate at infinity.
(ii) Some field lines begin on one charge and end on the other.
(iii) A few lines are shown crossing each other midway between the charges.
(iv) Arrows on every field line point outward from the charges.
Which feature(s) violate(s) the accepted conventions for electric field lines?
a) Only (ii) and (iii)
b) Only (iii)
c) Only (i)
d) Only (ii) and (iv)