This is what the dictionary says:
al·lu·sion<span>əˈlo͞oZHən/</span>nounan expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference."an allusion to Shakespeare"<span>synonyms:<span>reference to, mention of, suggestion of, hint to, intimation of, comment on, remark on"the town's name is an allusion to its founding family"</span></span>the practice of making allusions, especially as an artistic device.
Its something to do with referencing something
<span>Tom and Lily do not want to visit the Hatchings after picking up their scooter because they are frightened as hell if Mr. Noake will find out about the sunlight only to come and then ruin their place. It was the only area where both Tom and Lily freely plays whenever they want and Mr. Noake does not want the children to be exposed. </span>
What Ella wished for was: for her brother Nick to come home and she wished for snow.
The correct answer is A) Enjoy Life.