Text-1 Read the text. Then choose the correct answer for questions 1-2

Read the text. Then choose the correct answer for each question below (19-21).
What have recently been found in Egypt could be the earliest known writings. The. clay tablets have been carbon fled to between 3300 BC and 3200 BC. This discovery will upset the belief commonly held by historians that the first people to write were the Sumerians of Mesopotamia, in about 3000 BC. Most of the tablets were found in the tomb of a king called Scorpion, south of Cairo. The writings in the form of fine drawings of animals, plants and mountains are on day tablets barely bigger than postage stamps. They have been deciphered as records of linen and oil delivered to King Scorpion I. it seems that man's first writings were not a creative out pouring but the result of economics when the chieftains expanded their areas of control, they needed to keep a record of taxes, paid in the form of goods.
19. It is implied in the passage that the discovery of the clay tablets in Egypt...
A) apparent took place in approximately 3000 BC.
B) has not yet been officially confirmed by Europeans.
C) will change the current understanding the history of writing.
D) has proved that the Sumerians were the first to write.