Why does chemical safety remain a concern today? A. Chemists really don't know what to do with dangerous chemicals.
B. Chemists are constantly learning more about what makes
chemicals dangerous.
C. Chemists still have many older, existing chemicals that are
dangerous.
D. Chemists don't think about the safety of the chemicals they use.

B. Chemists are constantly learning more about what makes chemicals dangerous.

Explanation: The safety of chemicals still remains of utmost importance as chemist haven't relented in their strive and curiousness at knowing the compounds, mixtures and elements which makes chemicals dangerous in other to minimize or mitigate the risk of exposure to this chemicals during usage. Chemicals are things we cannot do without as they constitute a lot to the human race in terms of Energy and health. Due to this immense contribution, the safety of chemicals will remain of great priority to chemists.

the answer would be a