Statements: M = J > R = L ≥ U ≤ Z; X > N ≥ R ≤ C < K
Conclusions: I. N ≥ U
II. K > M
In these questions, the relationship between different elements is shown in the statements. The statements are followed by conclusions. Study the conclusions based on the given statements and select the appropriate answer:

The correct answer is If only conclusion I is true.

Step 1: Analyze the given statements

We are given two statements containing inequalities:

1. $M=J>R=L\ge U\le Z$

2. $X>N\ge R\le C<K$

Step 2: Evaluate Conclusion I: $N\ge U$

To connect $N$ and $U$, we use the common element $R$ from both statements.

From statement 2, the relationship between $N$ and $R$ is:

$N\ge R$

From statement 1, the relationship between $R$ and $U$ is:

$R=L\ge U$, which simplifies to $R\ge U$.

Combining these two paths:

$N\ge R\ge U$

Therefore, we can conclude that $N\ge U$ is true.

Step 3: Evaluate Conclusion II: $K>M$

To connect $K$ and $M$, we use the common element $R$ from both statements.

From statement 2, the relationship between $K$ and $R$ is:

$R\le C<K$, which means $K>C\ge R$, so $K>R$.

From statement 1, the relationship between $M$ and $R$ is:

$M=J>R$, so $M>R$ (or $R<M$).

Combining the path between $K$ and $M$ through $R$:

Since the inequality symbols between $K$ and $M$ face opposite directions ($>$ and $<$), no definite relationship can be established between $K$ and $M$.

Thus, Conclusion II is false.

Conclusion:

Only conclusion I follows.