Which statement about the answer to this problem is most accurate? 5/6 − 3/8 = 19/24

A. The answer 19/24 is reasonable because both fractions are closer to 1/2 than they
are to 1, making the difference close to 0.

B. The answer 19/24 is reasonable because 5/6 and 3/8 are both closer to 1 than to
1/2 making the difference close to 0.

C. The answer 19/24 is not reasonable because 5/6 is closer to 1 than to 1/2, and
3/8 is close to 1/2, making the difference close to 1/2.

D. The answer 19/24 is not reasonable because 5/6 is closer to 1/2 than to 1, and
3/8 is closer to 0 than to 1/2, making the difference close to 1/2.

Pls the last one and it has to be like number 6

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

Which of the following is true about the following construction of a tangent to a circle from a point outside of the circle?