Question

question 3:
which sentence from the passage best explains why \youll probably get sick again, but you can trust your immune system to stand up for you once more\?
\after the virus took hold in your body, it declared war.\
\your b cells and t cells retained a sort of memory of the virus.\
\colds and flu are especially contagious.\
\if it was influenza, it traveled to your lungs.\

Explanation:

When B cells and T cells retain memory of a virus, the immune system can recognize and respond more effectively if the virus reappears, which explains why one can trust the immune system to handle a re - infection (getting sick again). The other options do not address the immune system's ability to respond again.

Answer:

"Your B cells and T cells retained a sort of memory of the virus."