Political and legal enviroment

Hello Sir,
—- Constance is a sole trader operating in the UK. Her main business is in telecommunications:
providing telephone, broadband and cable television services to the public. Demand for
Constance’s services is growing and she is considering outsourcing some of her operations. She is looking into using local contractors for a short period, until she can train her own operatives to
cover the west of England and Wales.
+ How does the Government impact on Constance’s business?
A, company law
B, employment law
C, industry regulation
D, Consumer protection
—–> Correct answer is B, C, D.
I am wondering why don’t have to be A. May you explain all above correct answer to me?
Thank you