List of top English Grammar Questions on Adjectives Clause

Identify the adjective clause in the following sentence :
The reason why I did this is obvious.

Identify the option that demonstrates the most appropriate usage of an adjective clause.

Identify the Adjective Clause in the following sentence.
"The spot where the battle was fought is unknown".

Pick the sentence with an adjective clause.
(A) i don't know whose books are kept here. 
(B) I am glad that he won the match. 
(C) I missed the flight as i was late. 
(D) I know the place where they will come. 
(E) I remember the day  when we met for the first time.
Choose the correct option from the given below: 

Out of the options given below, choose the sentence which contains an Adjective Clause: