Sir, Actually i was reading m.c.qs in a grammar book and then i saw the following m.c.q
That was the reason why he came late. The clause 'why he came late' is a/an
(a)Adverb (b)Adjective clause
(c)noun clause (d)Adjective
Can you tell me which option is correct with a 'reason'?
The book says it is an "adjective clause". Is it true?
Kindly tell me.