In the following sentence, which clause is the subordinate clause?

I can’t do anything in the morning until I’ve had my first cup of coffee.

AI can't do anything
Bin the morning
Cuntil I've had my first cup of coffee
Dmy first cup of coffee

Verified Answer :

In the sentence:

I can’t do anything in the morning until I’ve had my
first cup of coffee.

The subordinate clause is:

until I've had my first cup of coffee

Sentence could be
simple (one independent clause), compound (two independent clause with
coordinating conjunction), complex (a subordinate & independent clause) and
compound-complex sentences (subordinate & two independent clause).