Alana wants to measure the speed at which drops of precipitation fall to the ground  in los angeles. which statement identifies a way alana uses technology to complete her experiment? a. she observes daily rainfall data from multiple weather stations throughout the city. b.she graphs the relationship between rainfall speed and time using graphing paper. c.she analyzes a map to determine different places to collect rainfall for the study. d.she estimates how fast rain falls by studying the sky at different locations in the city.