I think it’s the first one
Answer:
The friends enjoyed camping in the wilderness when it wasn't too cold.
When the author uses irony in his work, he assumes that the readers and the audience know how he truly feels or what he really wants to convey. Really to emphasize a point.
In the following sentence
The clams, which he ate, were
<span>
still fresh.
The main clause is:
</span>The clams..., were
<span>
still fresh.
</span>
The subordinate clause is then "which he ate".
This clause gives more information about The clams, which means it has the function of an adjective: it's an adjective clause.