Step 1: Identify the time reference.
The word “December” indicates a future time.
Step 2: Decide the appropriate tense.
For a simple statement about an event that will happen in the future,
we use the simple future tense:
\[
\text{will + base form of verb}
\]
Step 3: Analyse the options.
Will qualify — correct simple future construction.
Will be qualified — passive voice; changes the meaning incorrectly.
Will have qualify — grammatically incorrect; should be \emph{will have qualified}.
Will have been qualifying — future perfect continuous; used to show duration, which is not implied here.
Step 4: Select the correct option.
Hence, the correct answer is
\[
\boxed{\text{Will qualify}}
\]