The number of applications for admission reported by North American Ph.D. programs in art history has declined in each of the last four years. We can conclude from this that interest among recent North American college and university graduates in choosing art history as a career has declined in the last four years.

Question: Each of the following, if true, weakens the argument EXCEPT:
Options:
A. The number of North American Ph.D. programs in art history that opted to report data about applications for admission has declined in each of the last four years.
B. The average age of applicants for admission to North American Ph.D. programs in art history has increased in each of the last four years.
C. The number of errors in data about applications for admission to North American Ph.D. programs in art history has increased substantially during the last four years.
D. The number of North American employers willing to hire individuals without a Ph.D. for jobs in art history has increased in each of the last four years.
E. The percentage of applications for admission received from outside North America by North American Ph.D. programs in art history has declined substantially in the last four years.
Answer: "B"