According to Churchill, how was Britain's position in the war changed since the war started?

Ait has improved because the house of commons has agreed to use all air force capabilities to fight the Germans.

Bit has improved because the secret intelligence agency has intercepted valuable German war strategies

Cit has worsened because the French army is depleted and can no longer fight

Dit has worsened because Germany have overtaken smaller countries, which hinders Britain's air power

i think its either b or d. thank you for the help!