Answer:
A claim must be arguable but stated as a fact. It must be debatable with inquiry and evidence; it is not a personal opinion or feeling.
A claim defines your writing's goals, direction, and scope.
A good claim is specific and asserts a focused argument.
(hear: aud) (sea: mer/mar) (see: vid/vis) (water: aqua) (mindful: mem) (to know: sci) (sound: phon) (study: ology)
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.