I ' m pretty confident I did good . Multiple Choice on a chem test is a weird thing . I mean asking me to caluclate answers is one thing but when you have to calculate then pick a letter it 's kind of weird . but it made some parts super easy .

Q with options: Give answer the following question using evidence from the above passage: What would they have used to calculate an answer ?
Choose your answer from:
a). Scientific calculator;
b). Textbook;
c). None of the above choices .;
d). Smart phone calculator;
a).