How many characters' thoughts does the reader have access to in a second-person narrative?

The narrator is the predominant authority in a second person narrative since they are the only element that dictates how the characters in the story should behave and how the plot moves forward. Taking account of this information, it can be inferred that the only character thoughts the reader has access to are those of the narrator, watching the story flow throught the eyes of the latter.

you need need more details so we can understand what your asking us.

comfortable

explanation:

one type of the adjectives is predicate adjective. a predicate adjective is an adjective which follows a linking verb and modifies or refers back to the main subject of that linking verb.

it usually is used just before the noun it modies.

here in this example:

'penguins seem comfortable in the coolest habitats', comfortable is the predicate adjective which follows the linking verb 'seem' and modifies the noun.