In deriving expressions for capacitance for a balanced three-phase threewire line with equal phase spacing, the following relationships may have been used.

(i) Sum of positive-sequence charges, \(q_{a}+q_{b}+q_{c}=0\)

(ii) The sum of the two line-to-line voltages \(V_{a b}+V_{a c}\) is equal to threetimes the line-to-neutral voltage \(V_{a n}\).

Which of the following is true?

(a) Both

(b) Only (i)

(c) Only (ii)

(d) None