Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 12 to 16.
BOOKS
Nearly all the discoveries that have been made through the ages can (12) ______ in books. The invention of the book is one of humankind's (13) ______ achievements, the importance of which cannot be evaluated. Books are very adaptable, providing us with both entertainment and (14) _____. The production of books began in Ancient Egypt, though not in the form that is accessible to us today.
The books read by Romans, however have some (15) _____ to the ones we read now. Until the middle of the 15th century, in Europe, all books were written by hand. They were often beautifully illustrated and always rare and expensive. With printing came the possibility of cheap, large-scale publication and distribution of book, making (16) ______ more widespread and reliable.
A.informer
B.information
C.informing
D.inform