The answer is A:it does not have a plasma membrane. if you need proof https://www.bing.com/search?q=does%20a%20virus%20have%20a%20plasma%20membrane&qs=n&form=QBRE&sp=-1&p... i did a simple search
NON SPECIFIC
macrophages
skin
mucous
fever
SPECIFIC
antibodies
t cells
b cells
The plant uses osmosis in order for liquid to pass through it.
