Answer:
<u>Its alt from german</u>
Explanation:
Alt in German means old
The subordinate clause in this sentence is because I forgot to buy milk. The whole sentence is used as an adverb. Adverbs are used to answer questions such as where, when, or in this case, why.
Why did I have root beer in my cereal? Because I forgot to buy milk.
The answer is either A and if not its B forsure