A scientist has been working for 15 years to develop a new type of plastic material, but she has not yet been successful. Which of the following best explains why her work is still a success? (2 points)
Select one:
a. New ideas often develop from unsuccessful experimentation.
b. The original problem was not solved and can now be abandoned.
c. Most scientists require several decades of experimenting before achieving their goals.
d. The scientist has demonstrated that there are no new plastics for scientists to develop.

Question

A scientist has been working for 15 years to develop a new type of plastic material, but she has not yet been successful. Which of the following best explains why her work is still a success? (2 points)
Select one:
a. New ideas often develop from unsuccessful experimentation.
b. The original problem was not solved and can now be abandoned.
c. Most scientists require several decades of experimenting before achieving their goals.
d. The scientist has demonstrated that there are no new plastics for scientists to develop.

thomaster · Answer

Only one of them makes sense...

If you haven't discovered something, does that mean it doesn't exist? No, so we can eliminate B.
C is just wrong, no decades of research are necessary in most cases.
D, same explanation as for B.