I think it's true but I'm not 100% sure
Because just putting answers
It’s C. Plural. When using a word that contains an s, for example “ducks” it is more than one.
Answer:
It depends what they like and ur budget but I believe it's good to give something meaningful to both of u that you can have f9r a long time like jewelry or maybe clothes, stuffed animals if they like it or matching things could also be good
Or I've seen a lot people using things to put a lot of pictures of their loved one as something they can always look at it really depends on the person
(hope this helped)