Choose the correct statement about carbimazole: It induces improvement in thyrotoxic symp-toms afer 1-4 weeks therapy B.

Choose the correct statement about carbimazole: A. It induces improvement in thyrotoxic symp-toms afer 1-4 weeks therapy B. Control of thyrotoxic symptoms with carbi-mazole is accompanied by enlargement of thyroid gland C. Its long term use in Grave's disease leads to 'thyroid escape' D. It mitigates thyrotoxic symptoms without lowering serum thyroxine levels