The answer is sending out rays because to release or emit is to send out
Thanks to the agricultural expert's insight, we decided to let the field lay fallow for a year to improve the soil quality - it was a success!
Fallow usually means that something is not fertile or being used to grow anything. Often it is seen used when talking about fields used to grow crops. Allowing a field to lay fallow for a certain amount of time can help it gain back some of the key nutrients in the soil that excessive farming may have depleted. Another word for insight is knowledge.
A) It was the transportation of Africans to other countries to work as slaves
