Which figure should replace the question mark (?) if the following series were to be continued?

The given series of figures follows a repeating pattern of X's and B's. Let's break it down:
1st figure: B, 2nd figure: O, 3rd figure: X, 4th figure: X, 5th figure: B, 6th figure: B, 7th figure: O, 8th figure: O, and so on.
The series alternates the X's and B's in a regular manner. The correct next figure in the series, following this alternating pattern, is: XXX (X's in the first row), BBBB (B's in the second row), OOO (O's in the third row).
Thus, the correct option is 4.
Which figure should replace the question mark (?) if the following series were to be continued?
Identify the figure from the given options, which when put in place of the question mark (?), will logically complete the series.
$ + D ▲ $ + ▲ D ▲ ?
Select the option figure that will replace the question mark (?) in the figure given below and complete the pattern.
Which figure should replace the question mark (?) if the following series were to be continued?
Identify the figure given in the options which when put in place of the question mark (?) will logically complete the series?