And after I had become somewhat of an authority on virtual reality, but not like a really important one, so I was at the level of people the World Book would badger. They called me up and I wrote an article, and this is Caitlin Kelleher [shows slide of Caitlin wearing virtual reality headset manipulating a 3D world], and there’s an article if you go to your local library where they still have copies of the World Book. Look under V for Virtual Reality, and there it is. And all I have to say is that having been selected to be an author in the World Book Encyclopedia, I now believe that Wikipedia is a perfectly fine source for your information because I know what the quality control is for real encyclopedias. They let me in. Which statement best describes Pausch's purpose?

although mowgli is no longer accepted by the pack, he will always love his mother and brothers.

- "when these words are put together to convey a meaning it is known as a sentence. a sentence is a group of words that makes complete sense. placing of words in a sentence is very important. the second sentence is a question."

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.