Observation in a laboratory (as opposed to natural) setting has ...

[WWatsford]

Observation in a laboratory (as opposed to natural) setting has the advantage of
 a. Behavior is less restricted.
  b. Fewer tabulation and analysis problems.
  c. Better control of extraneous influences.
  d. Greater external validity.
  e. A laboratory setting possesses no advantages over a natural setting.

Question 2

With the lexicographic model, consumers
 a. order attributes in terms of importance and compare the options one attribute at a time.
  b. choose the brand with the greatest number of positive features.
  c. compare brands by attribute, two at a time.
  d. immediately reject the brand or service from the consideration set.
  e. evaluate one brand at a time.

[Tonny]

Answer to Question 1

c

Answer to Question 2

A