Name two scientific issues that involve ethics

Ethics in science involves making (or rather abandoning) decisions which go against one's morals - so if scientists don't feel comfortable doing something because they feel it is wrong, it means there is ethics involved. Here are some of the issues where ethics is present:
1. animal testing - whether or not products should be tested on animals first
2. stem cell research - has to do with research on human embryos 

The answer would be a. aluminum can