The russian psychologist lev vygotsky suggested that children's ability to solve problems is enhanced by

The correct answer is inner speech. Inner speech is defined as an expression of which comes from one’s conscious thought. By this, it allows children to have an ability of solving problems because they made use of what they know or the knowledge that they acquire to apply it to the problems that they need to solve.

the consumer demand because the members have to be aware if people are going to buy what they want to sell in this case either energy drinks or a car wash.

which sentences ? that question is incomplete