15 points!
1.) scientists are supposed to reveal any conflict of interests in their reports.
a) true
b) false
2.) promoters of health aids that are most interested in selling their products and making a profit are not biased.
a) true
b) false
3.) one can be confident of science claims through peer-reviewed journals as the process and rules of science are checked and re-checked to make sure conclusions for the data.
a) true.
b) false.

1. B) False

2. B) False

3. A) True.

Explanation:

1. The scientists are not required to reveal any conflict of interests in their reports as the content will be irrelevant for the research point of view. This can discourage the audience from reading and analyzing the report the actual research outcome will not be given much importance or attention as required.

2. The promoters of the health aids make false claims to sell out their products so as to make their own profit. These are biased as they are neglecting the originality of the product for the purpose of making their own profit.

3. One can be confident for the claims made by checking and re-checking processes of the conclusions of data because this process will increase the reliability and validity of the data which are included in the peer-reviewed journals.

it's all four options.