What contains the main idea in a paragraph

Which of the following facts is true for the jallianwalla massacre, as discussed in gandhi's reponse to mr. pennington? a) all members gathered for the vaisakhi fair remained calm. b) general dyer made a verbal proclamation warning all members of the crowd to stay peaceful. c) children attending the vaisakhi fair were killed, d) anyone who tried to run away from the violence was able to escape.

Akeyword should be just as confusing as the word you are trying to learn so you learn to concept them

There are six red marbles 4 blue marbles and 15 green marbles in a jar if you reach in and randomly draw one what is the probability that it will choose a red marble