Explanation:

- In the code language, each letter is replaced by a pair of numbers.

- The first number corresponds to its position in the alphabet (A=1, B=2, C=3, ..., Z=26).

- The second number seems to correspond to a specific code pattern.

Code Analysis:

- 'REASON' is coded as '5410219':

- R(18) = 5

- E(5) = 4

- A(1) = 10

- S(19) = 2

- O(15) = 19

- 'HEALTHY' is coded as '716231216':

- H(8) = 7

- E(5) = 1

- A(1) = 6

- L(12) = 23

- T(20) = 12

- H(8) = 16

Code for 'DIVULGE':

- D(4) = 21

- I(9) = 43

- V(22) = 34

- U(21) = 33

- L(12) = 43

- G(7) = 38

- E(5) = 38

From the options:

Option 2: 21433438