You are driving on a public road and need to turn your vehicle around. You can use a three-
point turn
A: Only where U-turns are permitted, and only if the road is too narrow for your vehicle to make a
U-turn and you cannot go around the block.
B: In place of a U-turn, if there is a sign prohibiting a U-turn.
C: On straight roads, including on hills, but not on curves.

answer; how far out of place which the object finished relative to the starting location;

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =

answergravity;