[Q]: Which of the following solutions is better for the following goal:
How to awaken Amazon Echo to ask it a question?

[A]: Call out the name Alexa and proceed to ask your question

[Q]: Which of the following solutions is better for the following goal:
How do I climb a ladder

[A]: Place your hands on the ladder, then place your feet on the lowest hinge and begin climbing upwards

[Q]: Which of the following solutions is better for the following goal:
To put a measured amount of liquid soap into a spray bottle.

[A]: Use a spoon to put a little liquid soap into a spray bottle.

[Q]: Which of the following solutions is better for the following goal:
Keep fleas out of the house

[A]:
If you have a flea infestation, you can spray rosemary spray around the areas that they are and it will repel the fleas.