Many elephants display behavior that suggests grief ______ they have been observed standing vigil over deceased members of their herd.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A
,
- B
(empty)
- C
, that
- Dcheck_circle
:
Explanation
A colon introduces an explanation/elaboration of "behavior that suggests grief." "," is a splice; " " is a run-on; ", that" creates a fragment.