B is the correct answer, they are 'targeting' their media, because they are searching for a specific audience, or looking for a target to pay the most attention to.
A.
It lets the reader know what the stakes of the story are
Enzymes are made from amino acids and they are proteins. When an enzyme is formed it is made by stringing together between 100 to 1000 amino acids in a very specific unique order.
Answer:
The purpose of the bobbin is to hold the thread that is held below the needle. The thread from the bobbin goes up through the plate and connects with the top thread to create a sturdy stitch when the machine is in use.
