Causal research is an investigation into the between the ways a tour operator markets and the buying decisions of customers. hypothesis
cause and effects
competitive analysis
market segmentation

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons