Option A is correct as correct form of tense is used .
In option A present tense is used which is wrong as sentence is in past tense.
In option C end is used which is opposite in meaning to शुरू.
In option D since is used( since is used to refer to a time or an action that begun in the past and is still continuing).
Statements: G@B; W#Z; B%W
Conclusions:
I) G@Z
II) Z@B
Statements:
X = P < M = T > K; S > L ≥ M > O
Conclusions:
I). T > O
II). S > X
Statements: B & C, C # D, D @ E, E % F
Conclusions: I. C & F II. E # B
...Statements: T = S, U ≤ V, P < K, U ≤ K, V > S
Conclusion:
I. S ≥ U
II. S < U
Statements: E ≤ F = G ≤ H = I, M < L ≤ G = K ≥ J
Conclusion:
I. I ≤ L
II. I > M
III. E ≥ J
Statement: I ≤ S, S < X, X = F, F ≤ K
Conclusion: I. K > I II. I < X
Statement: Y < Z > I < Q > S = M ≤ N
Conclusions:
I. S= N
II. Q > M
Statements: M = R ≥ S , N = O > Q, Q > W = A < S
Conclusions :I. N ≥ S
II. W > R
III. O ≤ S
...Statements: F @ R, R $ J, V % J, V # Z
Conclusions: I. F * V II. R * V ...
Statements: K ≥ N = I ≥ H ≤ U; B = S ≤ I
Conclusion: I. B < K II. B = K
...