Since this is an open question with no choices, I am answering with what I think will best fill in the blank. Note: I do not know exactly what answer they are looking for.
The best answer is: REM
REM is the stage of sleep where dreaming occurs. REM stands for Rapid Eye Movement. Exactly as the title says, REM sleep is characterized by fast back and forth movement of the eyes.
Answer:
d.
Explanation:
D is the only one that makes sense.
It helps you determine how effective the speech is<span />
Answer:
"We decided to place the motor to one side of the man, so that in case of a plunge headfirst, the motor could not fall upon him" "To provide against the machine rolling over forward in landing, we designed skids like sled runners, extending out in front of the main surfaces"
Explanation:
The two passages explain the injury preventative measures taken by the brothers to prevent any sort of accident, further proving a point of safety in their design
D A conclusion reached on the basis of evidence
