Drives are unlearned, species-specific behaviors that are no more complex than an eye blink

In general, it can be said of adulthood that it is

a. an era in which a tumultuous midlife transition will be experienced b. a period of exploring and exploiting the identity established in earlier stages of development c. an era in which individuals seek to establish a sense of trust d. an era in which one's stable identity is first established e. one of the briefest eras in human development

Briefly describe the three types of secondary schools found in most European countries

Please provide the best answer for the best statement.