Explanation:

Let’s break it down together step by step.

- The series you gave is: _ s t _ _ l b z _ t m m _ _ z s _ _ m l b

- We’re filling the 10 blanks with the order from each option, left to right.

- The chosen option needs to create a repeating or logical sequence.

Let’s check option 1: z m l s l b m t

- Fill in: z s t m l l b z s t m m l b z s m l b (You’ll notice it repeats some parts, but not all the way; it doesn’t fit smoothly.)

Option 2: z m m s l b t m

- Fill in: z s t m m l b z s t m m l b z s m l b (It fits into the blanks, and looking at the resulting series, there’s a clear repetition. Each segment after the blanks mirrors the initial series. The repeating pattern is strong.)

Option 3: z m m s b l t m

- Look at this filled in: z s t m m b l z s t m m b l z s m l b (Here the letters don’t match all segments as required, so it’s not right.)

Option 4: z m m s l b m t

- When you fill this in: z s t m m l b z s t m m l b z s m l b (This, like option 2, also creates a similar repeating string. But the “m t” at the end throws the sequence off in the final cycle compared to the clear pattern of option 2.)

So here’s the thing:

Option 2 (“z m m s l b t m”) is the correct pick.

It best matches the underlying pattern and keeps the sequence consistent throughout.