Can someone me with this sentence?

i have to identify the italicized clause.

*where we shall go* is a secret.

is it:
adjective clause
adverb clause
noun clause
gerund phrase

lihuliivi hili nilu lutaula previous 21 next end of semester test: english 12b submit test reader tools info- select the correct answer from each drop-down menu. read this excerpt and complete the sentences that follow a shropshire lad by ae housman (excerpt) when i was one-and-twenty i heard a wise man say "give crowns and pounds and guineas but not your heart away give pearls away and rubies but keep your fancy free." but i was one-and-twenty no use to talk to me when i was one-and-twenty i heard him say again, "the heart out of the bosom was never given in vain 'tis paid with sighs a plenty and sold for endless rue" and i am two-and-twenty. and oh, 'tis true, 'tis true the central theme of the poem is in the end, the poet the wise man's views. reset next