When blood droplets strike a surface, the shape of the stain changes depending on the angle of impact, velocity, distance travelled
and type of surface impacted. Often at angles , a distinctive exclamation point stain results.
A)
<10°
<400
<90°
>450

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.