关于劳务派遣的说法，符合法律规定的是（)。

One of the disadvantages of personal selling lies in its ______.

A．competition

B．flexibility

C．complexity

D．heavy cost

One of the disadvantages of organic food is that

A．it might occupy woodland.

B．it might use more fertilizers.

C．it depends more on insects.

D．it demands more efforts and water.

Compared to alternative energy, one of the disadvantages of fossil fuels is ______.

A．Mining is difficult.

B．It costs a lot of money to preserve.

C．They are difficult to be processed.

D．They are non-renewable.

Compared to alternative energy, one of the disadvantages of fossil fuels is ______.

A．mining is difficult

B．it costs a lot of money to preserve

C．they are difficult to be processed

D．they are non-renewable

There are advantages and disadvantages of online distance learning. One advantage is ______.

A．it is easy to do

B．it is cheaper than face-to-face learning

C．it is convenient

D．it is satisfying

One of the disadvantages of advertising is to ______.

A．lead people to buy bad-quality things

B．make people confused about choosing goods

C．make people buy more things than needed

D．inform. people of the products' benefits

Compared to alternative energy, one of the disadvantages of fossil fuels is ______.

A．Mining is difficult.

B．It costs a lot of money to preserve.

C．They are difficult to be processed.

D．They are non-renewable.

One of the disadvantages of young adults returning to stay with their parents is that

A．there will inevitably be inconveniences in everyday life.

B．most parents find it difficult to keep a bigger family going.

C．the young adults tend to be overprotected by their parents.

D．public opinion is against young adults staying with their parents.