Which choice provides the best evidence for the answer to the previous question? Choose 1
a. lines 16–18 (“In . . . plummeted”)(“In a decade, laser power on commercial-grade LiDARs has skyrocketed and costs have plummeted.”)
b. lines 18–19 (“These . . . farther”)(“These improvements in LiDAR technology allow airplanes to fly faster, higher and farther,”)
c. lines 29–31 (“Before . . . Earth”)(“Before this decade is out, we could directly assess the carbon stock of every single square hectare of tropical forest on Earth.”)
d. lines 31–32 (“We could . . . hand”)