According to Haas and Schafer (2014), what percentage of smokers begin smoking by age 18?

Which of the following statements about intellectual developmental disorder is not true?

a.) Some states restrict marriage for people with intellectual developmental disorder. b.) Fewer than 10 percent of all people with even mild mental retardation eventually marry. c.) Some clinicians have developed "dating skills programs" for mentally retarded individuals. d.) Mentally retarded individuals can learn to use contraceptives and carry out responsible family planning.

The thick, high-calorie fluid secreted by the mother's breasts at childbirth is known as callosum

Indicate whether this statement is true or false.