The answer would be B. He is named Friday because they met on a Friday.
C. uses
Uses is the only word that words in this context. The advertisement isn't keeping anything. It hopefully creates a desire in the consumer to buy a product but it doesn't create a technique. It also does intend to convince buyers but it can't intend a technique either. Techniques are used so this is the most accurate and precise replacement for has.
C! c is giving the engine human attributes
<h2><em><u>what , i am sorry but i didn't understood </u></em></h2>