Select the option that will replace the question mark (?) in the given series.

UVW30 : ? :: CDE90 : FGH130 :: IJK170 : LMN210

The correct option is XYZ60.

To find the term that replaces the question mark (?), let us analyze the pattern followed by both the alphabetical letters and the numerical values across the given analogy series.

Step 1: Analyzing the Letter Pattern
Let us observe the relationship between the letters in the given pairs:

In the pair CDE : FGH:

$\text{C}+3=\text{F}$

$\text{D}+3=\text{G}$

$\text{E}+3=\text{H}$

In the pair IJK : LMN:

$\text{I}+3=\text{L}$

$\text{J}+3=\text{M}$

$\text{K}+3=\text{N}$

Applying the same pattern (adding 3 to the alphabetical position of each letter) to UVW:

$\text{U}+3=\text{X}$

$\text{V}+3=\text{Y}$

$\text{W}+3=\text{Z}$

Thus, the letter cluster for the missing term is XYZ.

Step 2: Analyzing the Number Pattern
Let us look at the numerical values in each pair:

For CDE90 : FGH130, the difference is:

$130-90=40$

For IJK170 : LMN210, the difference is:

$210-170=40$

Also, looking at the starting numbers of the terms across the series (30, ?, 90, 130, 170, 210), adding 30 to 30 gives 60, establishing the pattern:

$30+30=60$

Thus, the missing number is 60.

Conclusion:
Combining both the letters and the number gives XYZ60.