A 52 $\mathrm { M } \Omega$ Resistor, 1 $\mathrm { M } \Omega$

Multiple Choice

A 5.2 $\mathrm { M } \Omega$ resistor, 1.2 $\mathrm { M } \Omega$ resistor and 1 $\mathrm { M } \Omega$ resistor are connected in parallel across a 15 V source. What is the total current if the 1.2 $\mathrm { M } \Omega$
resistor opens?

A) 2.88 $\mu \mathrm { A }$
B) 12.5 $\mu A$
C) 2.41 $\mu \mathrm { A }$
D) 17.9 $\mu A$