Call-by- ________ is the method of passing the argument's actual location in memory to a function

Which of the following is not an adverse factor affecting direct selling?

a. the unavailability of female consumers in their homes due to a large proportion of the female population that currently works b. high sales turnover of sales personnel c. a poor image associated with direct selling careers d. high mailing and catalog production costs

Interviews, statistical sampling, and company reports provide input data for quantitative analysis models

Indicate whether the statement is true or false