As soon as the death as possible. Parents will most likely need help to deal with the shock of this sudden death.
Any would actually work. Like fruits, and veggies.
The test is known as chronic villius sampling.
Chronic villius sampling is carried out to determine whether the developing baby has any genetic abnormalities such as Down's syndrome and many others. Usually, chronic villius sampling is carried out in women that are likely to have children with genetic disorders. The test helps the parents and doctors get a better understanding of the complications that may occur with the child, and the necessary steps that will have to be taken to bring up a child with the diagnosed disorder.
I'm not entirerly sure whether ANY of these statements could be considered untrue.
Socializing up to a certain extent could increase productivity, granted it would be done with work in mind.
B, C, D all are true as these are very commonplace things that can happen at the workplace, while not all are equally probable all of them could happen.
If one really is considered untrue, it most likely would be A.
A, amino acids are used to synthesise vitamin D. that's all I know. Have a good day :)