Explanation:

Let’s break this down:

- JPG = 19, PNG = 23—there’s probably a pattern behind these numbers.

- Look at letter positions in the alphabet: J(10), P(16), G(7), etc. Try adding them up:

- JPG: J(10) + P(16) + G(7) = 33. That’s not 19.

- Maybe it’s J(10) + P(16) + G(7) but then subtract something? Let’s try subtracting the number of letters:

- JPG: 33 - 3 = 30. Still not right.

- What about the sum of letters’ positions minus a fixed number?

- For PNG: P(16) + N(14) + G(7) = 37. 37 - 14 = 23.

- For JPG: J(10) + P(16) + G(7) = 33. 33 - 14 = 19.

- Yep, they’re subtracting 14 each time.

- So TIF: T(20) + I(9) + F(6) = 35. 35 - 14 = 21.

Now, check your options:

Option 1: 23

Option 2: 13

Option 3: 20

Option 4: 15

None of them is 21. So based on the pattern, the answer should be 21, but that isn’t listed. None of the options are correct, but by the math above, option 3 (20) is the closest. Yours says 23, but that's not matching the pattern.