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.
Yhhhh what???? girl what r u asking
D. Using colors to emphasize particular items
When you create a pie chart, it gives the viewer information about the percentages of things that are related to a topic. Using a pie chart shows how big or how little related items are compared to each other. Using different colors for each section of the pie chart distinguishes each item from the other. This makes it is very easy to tell which percentage is the largest and which is the smallest.