Final answer:
The obstacles of cost, not knowing where to get help, and difficulty in getting appointments are collectively known as Access Barriers in healthcare, which is the correct option (A) for the student's question.
Step-by-step explanation:
The question is about the types of obstacles people face when trying to access healthcare services. These obstacles can include the cost of healthcare, confusion over how to find support or assistance, and difficulties in securing an appointment with a healthcare provider. The best fit for the concerns listed - cost, not knowing where to get help, and inability to secure an appointment - is Access Barriers (Option A). These reflect the challenges people, especially in low-income categories, may encounter when trying to obtain healthcare, and highlights issues within the broader healthcare system which can include economic, social, and systemic factors.