Who is Dr. Wu Lien-teh

my mom

Explanation:

she gave birth to me!

Wu Lien-teh, was a Malayan physician renowned for his work in public health, particularly the Manchurian plague of 1910–11.

Explanation:

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this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

c. magnitude and direction