Which of the following statements contains a metaphor ? (a) jim has a mind like a steel trap, whereas susan's is more like a sieve. (b) it was hot as an oven outside, and katherine had to sit down to rest. (c) the floor felt sticky, like someone had spilled fruit juice or soda pop. (d) frank's heart was an open book

From the given choices, the statement which has a metaphor is:

(d) Frank's heart was an open book.

In the use of metaphor, there is an implicit interpretation of two different objects being compared which are not applicable literally. Unlike simile, which is evidenced by the other options above, metaphor doesn’t use the words such as, like, or as to denote comparison.

moon-letters were a method of writing invented by the dwarves. moon-letters were ordinary runes, but written in such a way that they could only be read when the light of the moon shone behind the writing. some moon-letters could be read by any moonlight, but it was possible to make the writing even more secret. more sophisticated moon-letters could only be read by the light of the same shape of moon, or at the same time of year, as when they were written. hope this !

the words “strangest” and “unusual” suggest that the narrator is about to tell the story of an odd or puzzling group of people.