What is the code for 'sky' in the code language?
I. In the code language, 'sky is clear' is written as 'de ra fa'.
II. In the same code language, 'make it clear' is written as 'de ga jo'.

Options

A. the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question,
B. the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question,
C. the data either in statement I alone or in statement II alone are sufficient to answer the question,
D. the data given in both statements I and II together are not sufficient to answer the question,

Explanation

To determine the code for the word 'sky' in the given code language, we will analyze the information provided in the statements step by step.

### Step-by-Step Solution:

1. **Analyze Statement I**:
- The phrase "sky is clear" is coded as "de ra fa".
- Here, we identify that 'clear' is a common word in both statements.

2. **Analyze Statement II**:
- The phrase "make it clear" is coded as "de ga jo".
- Again, 'clear' is present, and we see that 'clear' corresponds to 'de' since it is the only common code in both statements.

3. **Identify the Codes**:
- From Statement I, we have:
- 'sky' = 'ra' or 'fa' (since 'clear' is coded as 'de').
- From Statement II, we have:
- 'clear' = 'de' (as established).

4. **Determine the Code for 'sky'**:
- Since 'clear' is coded as 'de' in both statements, we are left with 'ra' and 'fa' for 'sky'.
- However, we do not have enough information to determine which of 'ra' or 'fa' specifically corresponds to 'sky'.

5. **Conclusion**:
- We conclude that we cannot definitively identify the code for 'sky' based on the information provided in the two statements.

### Final Answer:
The data given in both statements 1 and 2 together are not sufficient to answer the question about the code for 'sky'. Therefore, the correct answer is option 4.

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