Who became president in the wake of abraham lincoln’s assassination?

Vice President Andrew Johnson became President upon Lincoln's death. Johnson was to become one of the least popular presidents in American history. He was impeached by the House of Representatives in 1868, but the Senate failed to convict him by one vote.

Andrew Johnson became president after President Lincoln was assassinated.
Hope this helps!
~Mistermistyeyed. 

Your answer would be a in this question good luck