Which pair of words is not similar to the others?

D. ROCK - SOIL

In the sequence 1, 2, 3, 4, 5, 6, 7, how many times does the number 4 occur?

A. 1

In the sequence 8, 8, 8, 8, 8, 8, how many times does the number 8 occur?

B. 6

Assertion (A): Reading improves vocabulary. Reason (R): A larger vocabulary enhances communication skills. Which of the following is correct?

A. BOTH A AND R ARE TRUE, AND R IS THE CORRECT EXPLANATION FOR A.

If the word 'CAT' is coded as 3120, what is the code for 'DOG'?

A. 4157