This question is of average difficulty. Statement 4 mentions 'it is an example of an ancient belief system,' and the pronoun 'it' refers to the noun phrase 'the notion of balance' in statement 3. Therefore, 3 and 4 form a connected pair.
Now, the options are 3412 or 3421.
Statement 2 includes the phrase 'these parts,' and 'these parts' refers to the noun 'component parts' in statement 4. Thus, 342 form a related pair, with 4 and 2 forming one unit. Moreover, 'such a belief' in statement 4 refers to the belief mentioned in statement 4 itself.
Consequently, the correct sequence is 3421.