Something that is necessary is 'needed'.
Answer:
nos se ala verga weysu 4ifnkaolqamkwo rn isl2j8rr
<span>A. When is not answered.
(You could also argue that E: Where is not answered, although it is implied that it will be done nationally)
The sentence tells Who: The National Cereal Corporation, What: a free picture book, Where: Nationally, and Why: to promote reading</span>
