According to Psychologist Jan Sinnot,postformal Thought Also Takes into Consideration

According to psychologist Jan Sinnot,postformal thought also takes into consideration which of the following?

A) inability to consider real-world constraints
B) a shift back and forth between an abstract,ideal solution and real-world constraints that might prevent a solution
C) that usually a person cannot reach the postformal thought process without first establishing Piaget's formal operations
D) only seeks a single right answer and an inability to consider alternative solutions