It’s C. Antibiotics is basically a dormant Bacterial cell. So the body has memory cells only for bacteria’s and not viruses
Answer:
B. Sternum
Explanation:
The sternum (or breastbone) is a flat bone in the thorax's anterior area. It has a 'T' shape and is located in the center of the chest. The sternum, which is part of the bony thoracic wall, protects the internal thoracic viscera, such as the heart, lungs, and oesophagus.
Here is a picture from the internet.
C) Lymph
Lymph (node) can also help you determine if you are fighting off a sickness or disease. Best place to feel Lymphs are on your neck
If a Caterpillar is grown in the dark, then it will be the same color as a Caterpillar when it metamorphisizes