Which Is True of a Finish-To-Finish Dependency

Multiple Choice

 Which is true of a finish-to-finish dependency?

A) It is a dependency in which the "from" activity cannot start until the "to" activity or successor is started.
B) It is a dependency in which in which the "from" activity must finish before the "to" activity or successor can start.
C) It is a dependency in which the "from" activity must be finished before the "to" activity can be finished.
D) It is a dependency in which the "from" activity must start before the "to" activity can be finished.