Branch A conducts charge into a junction at a rate of 150C every minute, branch B carries 1.2A away from the junction, and branch C delivers 0.50A into the junction. What current flows in branch D if it carries charge away from the junction?
a) 3.0A away from the junction
b) 1.8A away from the junction
c) 150A away from the junction
d) 1.8A into the junction