Step 1: Understand the question.
The Purusharthas are the four aims of human life in Indian thought. The question asks for their traditional order, so we must recall that order and match it with the letters.
Step 2: Recall the standard order.
The traditional order is Dharma, Artha, Kama, Moksha. Dharma (right conduct) comes first because it guides all later aims. Artha (wealth) and Kama (desire) follow. Moksha (liberation) is the final aim.
Step 3: Turn the order into letters.
Dharma is D, Artha is C, Kama is A and Moksha is B. So the sequence in letters is D, C, A, B.
Step 4: Check option 1, A, B, C, D.
This starts with Kama and puts Moksha second. Kama should never lead the sequence, and Moksha must come last. So it is wrong.
Step 5: Check option 2, A, B, D, C.
This also starts with Kama and ends with Artha. The order is jumbled, so it is wrong.
Step 6: Check option 3, D, A, B, C.
This begins with Dharma, which is right, but then puts Kama before Artha and Moksha before Artha. So it is wrong.
Step 7: Check option 4, D, C, A, B.
This gives Dharma, Artha, Kama, Moksha, which matches the traditional order exactly. So option 4 is correct.
Final Answer:
The right sequence is Dharma, Artha, Kama, Moksha, which is D, C, A, B. This is option 4.
\[ \boxed{\text{D, C, A, B (option 4)}} \]