Letter B. is the answer
<span>B. Cell differentiation - start from a single cell and as the cells divide they become specialized</span>
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<em>After you design and write your help-desk procedures to solver the problem, the next step would be, testing and implementation.
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<em>Basically, in any problem-solving process, after planning and designing the solutions, the next process that should be implemented next is: testing and implementation. In the testing phase, staff and employees would implement the solution softly, meaning everything is not advertised yet and not formal yet. They would execute the plan and design and would evaluate if it is really effective. A documentation will prepare as the basis of the evaluation. After the testing, the project team would determine if the offered solution is possible or if there are more improvements to make.</em>
The answer is ascending because ascending is the numbers from smallest to largets
