Final answer:
Di(2-ethylhexyl) phthalate (DEHP) is an A) endocrine disruptor effects that can interfere with the body's hormonal system. In a study on male rats, exposure to low doses of DEHP during different stages of pubertal development was investigated for its impact on sperm count, gonad histology, and testosterone secretion.
Step-by-step explanation:
Di(2-ethylhexyl) phthalate (DEHP) is considered an endocrine disruptor. This means that it has the ability to interfere with the body's hormonal system, leading to adverse effects on development, reproduction, neurological function, and immune function. In the specific study mentioned, male rats were exposed to a low dose of DEHP during different stages of their pubertal development. The study investigated the impact of the exposure on sperm count, gonad histology, and testosterone secretion.
The results of the study would fall under option A) Endocrine disruptor effects, as DEHP is known to disrupt the endocrine system and can have various effects on reproductive and hormonal functions.