"When the seismograph began to record the violent earth-shaking caused by yet another eruption of the Nevado del Ruiz volcano in Colombia, no one thought that a few hours later more than 23,000 people would be dead, killed by lahars (volcanic debris flows) in towns and villages several tens of kilometers away from the volcano."

Which sentence below uses parentheses for the same purpose as in the sentence above?
A. "The intriguing thing about a cell phone is that it is actually a radio (an extremely sophisticated radio), but a radio nonetheless."
B. "Before beginning the experiment, please read the chemical analyses of the materials you will be using (See Appendix A of the handout.)."
C. "The first computer, called "The Analytical Engine" (1837), was designed and developed by Charles Babbage."

Question

"When the seismograph began to record the violent earth-shaking caused by yet another eruption of the Nevado del Ruiz volcano in Colombia, no one thought that a few hours later more than 23,000 people would be dead, killed by lahars (volcanic debris flows) in towns and villages several tens of kilometers away from the volcano."

Which sentence below uses parentheses for the same purpose as in the sentence above?
 A. "The intriguing thing about a cell phone is that it is actually a radio (an extremely sophisticated radio), but a radio nonetheless."
 B. "Before beginning the experiment, please read the chemical analyses of the materials you will be using (See Appendix A of the handout.)."
 C. "The first computer, called "The Analytical Engine" (1837), was designed and developed by Charles Babbage."