Victor and rosa want to enhance their synchrony with their 6-month-old daughter. they can best do this by

Answer

Imitating her vocal and facial expressions.

Explanation

Synchrony encompasses both the mother's and the child's responsivity and their emotional capacity to respond each other.For Victor and Rosa want to enhance their synchrony with their 6-month-old daughter they need to match their behaviors, emotional states and biological rhythms between them as parents and the infants because together that forms a single relational unit.The best thing they can do is by Imitating her vocal and facial expressions.

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.