Which of the following best summarizes chapter 12 of johnny Tremain?

a. Johnny travels to Lexingtion, where he finds Dr. warren with Rab, who is dying. Rab gives Johny his musket; then he sends Johnny away so his friends will not witness his death. When Johny returns, Dr. Warren offers to operate on his hand

b. Dr. warrnen asks to look at Johnny's hand. He sees that it is not as bad as Johnny thinks it is. he offers to oporate on his hand and cut the scar tissue joining the thumb to the finger. Even though Johnny will never be able to be a silversmith, he accepts Dr. Warren's offer.

c. Johnny travels to Lexingtion, where he finds Dr. Warren with rab, who is dying. At first, Rab does not seem as bad as he is, but then Johnny sees blood trickling out of Rab's mouth. Rab gives Johnny his gun; then he sends him away so Johnny will not have to see his friend die.

d. Along wih other Bostoians, Johnny learns of the events in Lexingtion and Concord and the deaths of eight minutemen. Johnny worries for his friend Rab and travels to Lexington in search of information