a participat in a group discussion can be an effective speaker on the same level as the other participants so as not to confuse them the particpants can also ask for feedback and ask if they need to clarify anything so the listeners are able to get the most out of the discussion. a speaker should also always come prepared and bringing notes and guidelines.

since it is asking for her reaction to elnora's trouble at school you can rule out any answers with a positive response (b). then you can rule out (d), this is because it does not show the mother's reaction but the daughter's response. that leaves you with two options (a) and (c), by looking at the options you can rule out (c) because it isn't referring back to elnora's issues at school.

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.

because he is using a description to provide evidence to support his argument.

hope this could