An ultra-low-power biomedical sensor is placed in a deep-sleep state where it draws a constant leakage current of 85 μA85\ \mu\text{A}85 μA. The sensor remains in this state for exactly 4.0 hours4.0\text{ hours}4.0 hours.
What is the total charge that flows through the sensor during this period?
0.020 C0.020\text{ C}0.020 C
1.2 C1.2\text{ C}1.2 C
1200 C1200\text{ C}1200 C
3.4×10−4 C3.4 \times 10^{-4}\text{ C}3.4×10−4 C