Yes ofcourse. Its completely your choice. It is okay if you want to appear for PC and Biology or PC and Mathematics or even for all of the 4 subjects. With PCB, you can get admission into various pharmacy and pharma-D state colleges of Karnataka.
If you want to get into any medical courses, then you need to give NEET. With PCM in KCET, you can apply for state engineering colleges.
Refer to the site below for more detailed information about the KCET -
https://engineering.careers360.com/articles/kcet
Some of the tips to prepare for the exam are also given here below..
https://learn.careers360.com/engineering/kcet/
Best wishes. Thank you.
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