For the following question, analyze the relationships between the elements as defined in the statements and determine which of the accompanying conclusions is logically valid.

Statements:
W < E = R < T, Q > W = S, A ≤ S ≤ C
Conclusions:
I: E ≥ A
II: R < A

To determine which conclusion is logically valid, let us combine and analyze the given statements step-by-step.

Given Statements:
1. $W<E=R<T$
2. $Q>W=S$
3. $A\le S\le C$

Combining the statements to relate $A$, $E$, and $R$:
From statement (3), we have: $A\le S$
From statement (2), we have: $S=W$
So, combining these gives: $A\le W$
From statement (1), we have: $W<E=R$

Combining the relation between $A$, $W$, $E$, and $R$:

$A\le W<E=R$

$A<E$ (or $E>A$)

$A<R$ (or $R>A$)

Evaluating Conclusion I: $E\ge A$
Our derived relationship is strictly $E>A$. Therefore, $E\ge A$ (which includes the possibility of equality $E=A$) is not logically valid as equality is impossible.

Evaluating Conclusion II: $R<A$
Our derived relationship is strictly $R>A$. Therefore, Conclusion II ($R<A$) is completely contradictory and false.

Thus, neither conclusion I nor conclusion II is logically valid.

The correct answer is: If neither conclusion I nor conclusion II is logically valid.