This is an example of <u>"a hypothesis".</u>
The hypothesis refers to a particular articulation of prediction. It depicts in concrete (as opposed to hypothetical) terms what you expect will occur in your examination.
The hypothesis is the key instrument in directing examination. It proposes new investigations and perceptions and in fact the majority of the examinations are attempted, with the sole point of testing the speculation. It is a propounded clarification for the incident of a specific marvel, whose improvement depends on particular proof.
Wilhelm Wundt established the first psychological laboratory in 1879 in Germany.
Answer:
D). the development of transportation and communication systems.
Explanation:
'Industrialization' in the United States was the product of several factors including a higher rate of immigration, decreased farm product prices, advancements in technology, development of transportation, as well as, communication systems, etc. The enhanced transportation through railroads and steamships along with expanded communication through telegraphs promoted the rapid growth of industries in the city. It further attracted the laborers to move to urban areas which increased the workforce significantly. Thus, <u>option D</u> is the correct answer.