Baltes et al.'s research in gerontology is focused on plasticity. the research uses the term "plasticity" to describe people's capacity. plasticity refers to the belief that capacity is not fixed but can be learned or improved with practice. which core issue of human development does baltes et al.'s research explore? a. stability–change issue b. universal versus context-specific controversy c. continuity–discontinuity controversy d. nature–nurture issue

C. continuity-discontinuity controversy      

Explanation:

The continuity approach says that change is a gradual and continuous process. A Child becomes more skillful in talking, thinking, or acting a lot the same way as they get elder or taller. The discontinuity approach says development is an abrupt process-a sequence of changes that construct different behaviors at different ages.

Discontinuity includes:

1. lack of cohesion or continuity.

2. Gap sense.

the correct answer is c.