One line voltage of a balanced Y-connected source is VAB​=180−20 if the source is connected to a δ-connected load of 20 40. Find the phase and line currents.

a) Not enough information provided
b) Phase currents = ?, Line currents = ?
c) Phase currents = ?, Line currents = 20 A
d) Phase currents = 20 A, Line currents = ?