Hello,
Both the options are good if you are interested in purushon them.it completely depends on your interest.both these subjects are interlinked .These are merged to such an extend that it becomes difficult to draw a a clear line between these two.
Career options after pursuing biotechnology:

• Bio medical engineer
• Biochemist
• Microbiologist
• Biological technician

Career options after pursuing life science:

• Industrial pharmacist
• Clinical research associate
• Biochemist
• Microbiologist

• Hope this helps,
• Good luck