'If you didn't pick the option in school can you still get to do it in collage?'
Yes, although it is a good foundation to have prior knowledge of the subject.
'Do you need higher GCSEs grades if you are doing A levels ?'
Most courses require a minimum of level 4, however some colleges may state a higher entry grade for certain courses.
'What happens if you don't know which course you want to learn about or study.'
It is always worth checking college websites and prospectus for information on courses. You can also attend college open evenings/days and even organise a meeting with your school careers advisor.
'What is the salary for an engineer?'
The average salary for a UK engineer is £34,000 but could be as high as £85,000.
'What topics would you study in an NHS apprenticeship?'
There are more than over 350 different careers in the NHS that would lead to learning different topics. Take a look at the following link for further information. https://www.healthcareers.nhs.uk/career-planning/study-and-training/apprenticeships