Answer:
They had exposure to television with multiple channels.
Explanation:
Multitel is a research community that does research work or research study on the various platforms and topics and see whether the results affect the society.
Harrison and Williams investigated and researched the creativity of 284 children for a period of 2 years in 3 Canadian communities.
So according to the research study done by MacBeth in the year 2006, the correct statement is :
Children have had exposure to the tv with the multiple channels in the MULTITEL community.