What Is the Unit for the Measure of an Absorbed

Multiple Choice

What is the unit for the measure of an absorbed dose of radiation and what is its SI definition?

A) watt, 1W = 1 J/1 sec
B) joule, 1 J = (mv²) /2
C) becquerel, 1 Bq = (number of decay events) /time
D) sievert, 1 Sv = 1 J/(kg of body tissue)
E) gray, 1 Gy = 1 J/(kg of body tissue)