•what type of blood cell would pose the greatest threat to you? explain the reason for your choice.
•imagine that your miniaturized submarine is attacked by a defensive blood cell. write a short description about the specific type of blood cell that includes its appearance and the attack.
•besides the defensive blood cells, what other threats would you face from the patient's immune system? describe a few structures that would attempt to destroy you and the way they would attempt to do this.

I'm supercilious that the submarine would be made of metal and glass on the external.

 Most metals are inert in the human body as they parade no surface antigens for the host immune system to respond).

As a result you should not be at risk of attack by any white blood cells or any other component of the immune system because all components of immunity count on on recognizing enemy antigens.

 This would therefore reduce antibodies, accompaniment, B-cells, T-cells, etc useless

hope it helps

looks like you are missing options or a image.

i think its pulmonary not sure tho