Are visitors allowed to switch to a work visa while in the UK?

Visitors are generally not allowed to switch to a work visa while in the UK, except under specific circumstances. This rule is in place to prevent visitors from misusing their visitor status to gain access to the labor market without going through the appropriate legal channels.

Specific circumstances that might allow a visitor to switch to a work visa include situations where the individual meets certain eligibility criteria, such as holding a valid job offer from an employer who is a licensed sponsor in the UK. However, this process is only applicable in certain visa categories and does not apply broadly to all visitors.

The other options suggest scenarios that are either too permissive or vague regarding the complexities involved in switching visa status. Thus, the correct answer aligns with the UK immigration policy which emphasizes control and the specific requirements needed to change visa status while remaining compliant with immigration laws.