An excerpt from Prime Minister Winston Churchill's radio address to the people of the United Kingdom on May 8, 1945:

Yesterday morning at 2:41 am at Headquarters, General jodl, the representative of the German High command, and grand admiral doenitz, the designated head of the German state, signed the act of unconditional surrender of all German land, sea and air forces in Europe to the Allied Expeditionary force and simultaneously to the Soviet high command


What type of source is this and how do you know that

A. A primary source, because Churchill speaks directly to the people of the UK
B. A secondary source because it is a excerpt of a radio address given by the prime minister
C. A primary source, because it is an excerpt of a radio address given by the prime minister
D. A secondary source, because it is a radio address and not an actual speech