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Statement -1 If Delta(r)=|{:(r,r+1),(r+3...

Statement -1 If `Delta(r)=|{:(r,r+1),(r+3,r+4):}|` then `sum_(r=1)^(n) Delta(r)=-3n`
Satement-2 If `Delta(r)|{:(f_(1)(r),f_(2)(r)),(f_(3)(r),f_(4)(r)):}|`
`Sigma_(r=1)^(n) Delta (r)={:abs((Sigma_(r=1)^(n)f_1(r),Sigma_(r=1)^(n)f_2(r)),(Sigma_(r=1)^(n)f_3(r),Sigma_(r=1)^(n) f_4(r))):}`

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The correct Answer is:
C
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