Sarah appeared serene as she bowed in front of the massive crowd, however, her hands betrayed her with their almost invisible—but constant- shaking.

Identify the context clue and its function in the sentence above.

AThe work invisible signals that Sarah was serene.

BThe word however signals that Sarah is actually nervous.

CThe word constant signals that Sarah is actually serene.

DThe word almost signals that what is being said about Sarah is false.