Which of the following is essential to regulate the heart beat?

Statement- 1 - 6# ≥ 9# ≥ 10# ≤ 5#

2 - 7* ≤ 10# ˃ 5* ≥ 6*

Conclusions:

1) 5# > 5*

2) 9# ˃ 6*

Statement: E < N < Q = W = F ≥ U > A

Conclusion:

I. Q > A

II. E > F

Statements: X ≥ W, W ≤ U, U > T, T < S

Conclusions: I) X > U

II) S > U

III) T < W

Statements: Z > Y ≥ X; I < N ≤ L; F < I > D > Z

Conclusions:

I. L > F

II. X < N

III. Y < I

Statements: P # B, Q $ B, B @ J, J % F

Statements:       T @ V % Z #  C & B $ S  # E; W $ Z @ C

Statements: U ≤ T < V; W < V; S = T < R; X < W = Y < Z

Conclusions:

I. R > U

II. X < S

III. T < Z

Statements : C © S * R, U % R $ Z 

Conclusions : 

I. Z $ C 

II. U % S 

III. U © C

Statements:  P > Q > R > S > T < U < V < W < X

Conclusion:

I.  P > T

II.  U < X

If the expressions, ′A < B ≤ N > E ′, ′Z ≥ N′ and ′Z ≥ B′ are true then which of the following combinations will be definitely true?