This is a time question this person said that they’re in la. when they took a screenshot of a picture and send it to me. it said 6: 17 on their phone. my phone said 7: 23.. i tried to convert it and it would be 9: 17 for me? i don’t know. but, i just wanna know what time zone the person is in : ) you for taking your time of day for looking at my question, or answering it. god bless you : )

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias