A. brought into laboratory
B. Kept in their homes and observed
C. are not told about experiment
D. None of these
Correct Answer: brought into laboratory ✔
Last Updated: September 23, 2019
A. brought into laboratory
B. Kept in their homes and observed
C. are not told about experiment
D. None of these
Correct Answer: brought into laboratory ✔
Last Updated: September 23, 2019