From the following options, choose the option with the correct use of the plural verb:

Choose the most appropriate option that best expresses the meaning of the following idiom:

A Red Letter Day.

Match the idioms in List-I with their meanings in List-II:

List-I	List-II
(Idioms)	(Meanings)
(A) take the bull by the horns	(i) to produce great applause or laughter
(B) play the devil's advocate	(II) to take great trouble to do something
(C) bring the house down	(III) confront the challenge with determination
(D) bend over backwards	(IV) argue the opposing viewpoint just to spark a debate

Choose the correct answer from the options given below:

Select the most appropriate meaning of the given idiom:

helter skelter

Match the idioms in List-I with their meanings in List-II:

List-I	List-II
(Idioms)	(Meanings)
(A) Living in an ivory tower	(I) Too young and inexperienced
(B) Achilles' heel	(II) A weak spot through which one can be hurt
(C) Wet behind the ears	(III) Too weak or unreliable to be depended on
(D) A broken reed	(IV) Protected from difficult and unpleasant features of life

Choose the correct answer from the options given below:

Fill in the blank with the most appropriate option:

The new law was introduced __ increasing concerns about public safety.

Fill in the blanks in List-I with the most appropriate phrases from List-II:

List-I	List-II
(Sentences)	(Phrases)
(A) He always ______ at the time of need.	(I) up in
(B) Their idea is still ______ the air.	(II) nail on the head
(C) The team worked ______ to finish the project.	(III) backs out
(D) She hit the ______ with her observation.	(IV) round the clock

Choose the correct answer from the options given below: