The term "curriculum" can mean an

academic area of study or:

1. a federal guideline
2. a holistic subject
3. the total program
4. a separate model

Can't "curriculum" mean the total
program?

Generally, it means an integrated program of study. That can be total program.

I know to some,curriculum means the total program,such as an infant,toddler,
pre-school,Montessori,Head Start, or
kindergarten program.
But a second way to look at curriculum
is to view it as a separate subject,
content, or academic area of study.
With that said should the correct answer
be (3)the total program or
(4)a separate model

The correct answer in this case would be (3) the total program. Curriculum refers to the overall plan and structure of education, including the subjects, courses, and learning experiences that make up a comprehensive program of study. While it can also be viewed as individual academic areas or subjects, the primary meaning of curriculum is the total program.