Final answer:
Standards of measurement were needed to eliminate inconsistencies and to facilitate commerce and scientific communication. The choice of reference points based on human body parts led to variability, which was not conducive to the progression of commerce, technology, and science.
Step-by-step explanation:
The need for standards of measurement arises for several critical reasons. Initially, measurements varied significantly because they were based on human dimensions such as the distance between knuckles (an inch) or the span from the king's finger to his nose (a yard). Before the establishment of standardized measurements, commerce and daily interactions were hampered by inconsistencies. For example, using one's foot length could lead to confusion and inaccuracy. Additionally, standardized measurements in science are vital for comparing experimental data and ensuring cohesive communication across various platforms or labs. Notably, technology and science drive each other's progress, and accurate measurements play a significant role in this symbiotic relationship. With these reasons in mind, the most suitable answer to the student's question is: a) Before standards, measurements of the same kind would differ from person to person.