“Attention all customers: This is the store manager. Due to the impending ice storm, the store will be closing at 4:00 today, in approximately 10 minutes. If you have items to buy, please do so at this time. Our clerks are standing by to process your purchases as efficiently as possible. I repeat, the store is closing due to the severity of the approaching storm. Thank you, and please drive safely.” 9 The serious tone of this announcement is best conveyed by which of the following words or phrases?