Answer:
I would say A. not 100% sure but seems the most logical.
Answer:
led to the spread of slavery
Explanation:
Answer:
These researchers are suffering from observer bias.
Explanation:
Observer bias is also known as <em>research bias</em> and it is the tendency an individual has to <em>see what he/she wants or expects to see</em>. The researcher allows his/her expectations about what will happen to <em>affect the study's results</em> because one's subjectivity comes into play, not really being objective.
The answer is : C. Both A or B
Advanced stop lines and bike boxes are a same thing.
During the traffic, only cyclists are allowed to cross this advanced stop lines or bike box, preventing them from potential accident