Heath has found a new online encyclopedia by a company he has never heard of before. heath’s friend, sam, urges heath to stick to sites he knows are safe and credible. why is sam so concerned? a. many online references are not regulated c. both of these b. online references may contain incorrect information d. none of these

Explanation:

Sam is concerned because Internet is not a regulated source of information, anyone could post some words and nobody filter this. That's why in internet there is so wrong information about everything.

it is important so later on in life they . can solve issues like that or other tough times in their life.. and also have info on those topics.

they can talk about topics like that by sitting the person down and talking with them.

explanation:

harlem's  cotton club boasted the talents of duke ellington. singers such as bessie smith and billie holiday popularized blues and jazz vocals. jelly roll morton and louis armstrong drew huge audiences as white americans as well as african americans caught jazz fever.