Choose the sentence that is grammatically correct from the options provided. Amidst the cacophonies of the bustling metropolis, there exists an oasis of tranquility where the weary soul finds respite.

وہ جملہ منتخب کریں جو گرامر کے لحاظ سے درست ہو۔

Amidst the cacophony of the bustling metropolis, there exists an oasis of tranquility where the weary souls find respite.

Amidst the cacophonies of the bustling metropolis, there exists an oasis of tranquility where the weary soul finds respite.

Amidst the cacophony of the bustling metropolis, there exists an oasis of tranquilities where the weary souls find respite.

Amidst the cacophony of the bustling metropolises, there exists an oasis of tranquility where the weary soul finds respite.

a) Amidst the cacophony of the bustling metropolis, there exists an oasis of tranquility where the weary souls find respite.

"Cacophony" is used in its singular form, referring to a loud, jarring noise in a single place (the metropolis).
"Metropolis" is singular, which fits the context of the sentence (referring to one city).
"Tranquility" is an uncountable noun, so it remains singular.
"Souls" is correctly pluralized to match the plural subject "weary souls."