Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: I went grocerie shopping and spent $ 221 freaking dollars . That sucks . I believe I have finally submitted the last piece of bureaucratic bs paper - work to the school . Today is cardio only at the gym , I am contemplating doing the spin class tonight .

Question: What may be your reason for wanting to do the spin class tonight ?
I needed to do a cardiovascular activity .
To do cardio exercise.