The important development that allowed Dontrell to attend the birth of his child is the<u> </u><u>invention </u><u>of the</u><u> airplane/ air travel. </u>
Air travel:
- Has allowed humans to transverse great distances within very short periods
- Has revolutionized logistics in human society
Thanks to air travel being invented, humans can move distances that would take days by other modes of transport in mere hours. This will allow Dontrell to come back in time to attend the birth of his child.
In conclusion, Dontrell will not miss the birth of his child thanks to the invention of air travel.
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I believe the answer is: DRA
DRA in this context stands for <span>Differential Reinforcement of Alternative.
In this schedule we aimed to increase the rate of appropriate/desired behavior by only responding to the subject only if the subject display a desired behavior.
This type of scheduling tend to be really effective in modifying children's behavior in classrooms setting.</span>
A privilege is something that you get if you’re thought of as the best. a disadvantage is something you have when you lack a certain trait or have one .