Which of the Following Statements Route Import Is False

Which of the following statements route import is false?

A) Importing IBGP routes into the OSPF process may cause routing loops.
B) By default, the metric of external routes imported into the OSPF process is 1 and the type of imported external routes is Type 2.
C) BGP can generate routes in either Import or Network mode. The Network mode is more precise than the Import mode.
D) After IS-IS Level-2 routes are imported to an IS-IS Level-1 area, routing loops occur if no route import policy is manually configured.