Identify the Letter of the Choice That Best Matches the Phrase

Multiple Choice

Identify the letter of the choice that best matches the phrase or definition.
-Software that provides error messages and warnings if the code in a document does not conform to the rules of the specified version of HTML

A) paragraph
B) Internet
C) World Wide Web
D) hypertext
E) network
F) validator
G) metadata
H) URL
I) extension
J) heading element
K) inline element
L) em element