Select the complete subordinate clause (including all modifiers).
I honestly did not know that you felt so strongly about the subject.
A.I honestly
b.I honestly did not know
c.did not know that you
d.that you felt
e.that you felt so strongly
f.that you felt so strongly about the subject
The complete subordinate clause (including all modifiers) in the given sentence is:
e. that you felt so strongly about the subject.
To identify the subordinate clause, we need to look for a group of words that contains a subject and a verb but cannot stand alone as a complete sentence. In this case, "that you felt so strongly about the subject" meets these criteria and functions as a subordinate clause.