C. a fax cover sheet is a document used to keep track of all faxes recieved.
EXPLAINS, IS
The tour guide EXPLAINS that either candles or a lantern IS used to see into the tomb.
Tour guide is singular. Therefore, verb used must be in singular form.
Lantern is singular and it is the nearest subject of the verb. Thus, the verb must also be in singular form.
Answer:
Every child has the right to learn. A lack of trained teachers, inadequate learning materials, makeshift classes and poor sanitation facilities make learning difficult for many children.
Explanation: