Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Which of the following is true, according to the passage you have just heard
A.Einstein took part in the Manhattan Project together with a Leo Szilard. B.Einstein wrote a letter to inform Roosevelt of the possible atomic bomb. C.Einstein was asked to deliver speeches on peace, and on many other topics. D.Einstein was opposed to war by writing extensively on peace in Germany.