Answer:
adjective
adjective: rudimentary
involving or limited to basic principles.
"he received a rudimentary education"
Similar:
basic
elementary
introductory
early
primary
initial
first
fundamental
essential
rudimental
Opposite:
advanced
relating to an immature, undeveloped, or basic form.
"a rudimentary stage of evolution"
Similar:
primitive
crude
simple
unsophisticated
rough
rough and ready
makeshift
rude
vestigial
undeveloped
incomplete
embryonic
immature
nonfunctional
abortive
obsolete
Opposite:
sophisticated
developed
What the heII even is this question??? XD
The function of the noun clause <em>that you are ready to graduate </em>is that of the subject of this sentence.
If you are unsure how to solve this, just change the whole noun clause with a pronoun, and it will become much easier: That is very clear to me. What is very clear to me? That.
Or use that question technique with this example: What is very clear to me? That you are ready to graduate.
