Explanation:

- The phrase "work is worship" is coded as "jk rt pq".

- "work hard always" is coded as "jk mn uv".

- "always do worship" is coded as "uv st pq".

- "hard time passes" is coded as "mn ab ef".

Let's decode the words:

- "work" appears in the first and second phrases, with common code "jk".

- "worship" appears in the first and third phrases, with common code "pq".

- "hard" appears in the second and fourth phrases, with common code "mn".

- Hence, "hard" is coded as "mn".

Examining options:

- Option 1: Work is not coded as "rt"; it's "jk".

- Option 2: "is" can't be deduced directly; "jk" stands for "work".

- Option 3: "worship" is coded "pq", not "mn".

- Option 4: "do" cannot be "rt", as it's not matching.

- Option 5: Hard is correctly matched with "mn".

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