The words such as blood-bedewed and corpse-like in the phrases given above give off a sinister tone. The words blood and corpse relate to death, a dark atmosphere, or hints that something threatening or harmful is about to happen or has happened. The word "sinister" best describes the tone used in these phrases.
it's either a letter, speech, or a diary entry
It would be B
Earth's outer shell is divided into several plates that glide over the mantle.