Read the following passage and mark the letter A, B, C or D to indicate the correct answer for each of the questions.

Today, in many parts of the world, it is customary for people to shake hands upon meeting as a gesture of goodwill. Originally, however, the practice of shaking hands had more practical purposes.

Shaking hands originated in medieval times. In those days, when a man came on a stranger, he would often automatically reach for his sword with his right hand, in case he had to use the weapon to defend himself. Sometimes, both parties found themselves circling around each other, weapons in hand, until it was mutually agreed that the weapons could be laid aside. Then the two parties extended their right hands to show they had no weapons, and clasped them. This was the beginning of the handshake.

The custom of shaking hands is not a universal one. In the orient, people have for centuries, clasped their own in front of them upon meeting to show they held no weapons. In France, a custom developed in which people who met would kiss each other on both cheeks. The natives of some South Seas islands greet by rubbing noses.

Note: clasp (v): nắm chặt, siết chặt.

In medieval times, the purpose of shaking hands was_________