A Scientist at a Canyon Notices Observes a Dike Cuts

A scientist at a canyon notices observes a dike cuts across the sedimentary layers. How did it get there?

A) It was there before the layers; the layers built upon above and beneath it over millions of years.
B) There was an earthquake  a layer of igneous rock was thrust into the sedimentary layers..
C) Magma rose from within the earth and intruded the sedimentary layers.
D) A piece of a volcano broke off beneath the earth..