Answer:
A. Although
Step-by-step explanation:
Although is a con junctional word is a conjunction, place a comma before it when it is in the middle of a sentence . For example, in the sentence , “We had a great time at the park, although it rained,” the comma comes before “although .” This creates a pause that makes the sentence flow more smoothly.
Not only this, it also give us the heads up that an out come is about to come out just like in the sentence.
Although, it rained. The rain here is the outcome.