Arrange the following in a chronological order and select the correct answer using the code given below:
(A) Hercynian
(B) Caledonian
(C) Alpine
Code :

Question

Arrange the following in a chronological order and select the correct answer using the code given below: 
(A) Hercynian 
(B) Caledonian 
(C) Alpine
Code :

Accepted Answer

Option 3, "B, A and C," is the correct chronological order because it accurately reflects the timing of the Caledonian, Hercynian, and Alpine orogenies (mountain-building events).

Here's why:

*   **Caledonian Orogeny (B):** This was the earliest of the three. It occurred primarily during the Silurian and Devonian periods of the Paleozoic Era, roughly 490 to 390 million years ago.

*   **Hercynian Orogeny (A):** Also known as the Variscan orogeny, this event took place during the late Paleozoic Era, specifically the Carboniferous and Permian periods, approximately 340 to 250 million years ago. It followed the Caledonian orogeny.

*   **Alpine Orogeny (C):** This is the most recent of the three. It began in the Mesozoic Era (around 65 million years ago) and continued into the Cenozoic Era, shaping many of the major mountain ranges we see today, including the Alps, Himalayas, and Andes.

Therefore, the correct chronological order is Caledonian, Hercynian, and then Alpine.

Now, let's explain why the other options are incorrect:

*   **Option 1 (A, B and C):** This is incorrect because it places the Hercynian orogeny before the Caledonian orogeny, which is chronologically inaccurate.

*   **Option 2 (A, C and B):** This is incorrect because it places both the Hercynian and Alpine orogenies before the Caledonian orogeny, and the Hercynian orogeny before the Alpine orogeny, both of which are chronologically inaccurate.

*   **Option 4 (B, C and A):** This is incorrect because it places the Alpine orogeny before the Hercynian orogeny, which is chronologically inaccurate. The Alpine orogeny is the most recent of the three.

In conclusion, only Option 3 (B, A, C) accurately represents the chronological order of these three major orogenic events: Caledonian, Hercynian, and Alpine.