Which of the Following Theories Is Not Falsifiable or Refutable

Which of the following theories is not falsifiable or refutable?

A) Everything that has happened to Jane throughout her life happened to her specifically because she was born on June 23, 1993.
B) People with blue eyes tend to be more sensitive to light than people with brown eyes.
C) Women who are electrical engineers tend to have fewer children than women who are retail cashiers.
D) People who watch more than six hours of television per day tend to weigh more than people who watch fewer hours of television daily.