Answer:
Explanation:
D. Small group,
some group activities give the teacher the opportinity to deliver instructions on a more personal level than whole group activities because in a smaller group there is more time to work with individuals as opposed to have to dedicate all time to generalized lessons for the whole group.
A.they travel at high speeds
Specialization concentrates on the creation of a confined scope of commodities and services in order to achieve high levels of efficiency in production. Specialization has a comparative benefit in the creation of goods and services.
National level specialization enables more international transactions to take place and also many countries production could also be imported. Therefore it enhances the opportunity for the people of the country. Any manufacturer which are specialized in the production of certain products can benefit from global trade.