This type of intrusive igneous rock body is injected between existing layers of roc. Is it鈥︹€??

-laccolity


-Dike


-Batholith


-lacolith|||Since you used the words "between layers," your answer would be lacolith. Lacoliths form when magma comes up a dike (the "tube") and gets inserted in-between two sedimentary layers where it cools into a dome-like shape.