Question

splitting a word that appears at the end of a line helps us

learn how to split a word into syllables

use our imagination

avoid unexplainable empty space that would appear otherwise

save page space

Explanation:

The question is about the purpose of splitting a word at the end of a line. Splitting a word (hyphenation) at the end of a line in writing/typography is done to avoid having an unexplained empty space (widow or orphan - like spacing issues) on the line. Learning syllable splitting is not the main purpose here, using imagination is irrelevant, and it's not about saving page space in the sense of the option given (the correct reason is about text layout and avoiding odd empty spaces).

Answer:

C. avoid unexplainable empty space that would appear otherwise