D. 1mm/10cm is the correct answer choice.
Geometric sequence is a sequence of numbers that have a common ratio between them.
The factor of the trinomial is 
Explanation:
The given trinomial is 
We need to determine the factor of the trinomial.
The factor of the trinomial can be determined by finding the root of the trinomial.
Let us factorize the trinomial 
Thus, the trinomial can be written as,

Grouping the terms, we have,

Simplifying the terms, we get,

Multiplying the terms, we have,

Thus, the factor of the trinomial is 