Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'D'. (Ignore the errors of punctuation, if any).

1. The brand propositon now therefore had to be that Keokarpin Antiseptic Cream is more effective
2. because it penetrates deepdown (beinglight and non-sticky) and works from within
3. (because of its ayurvedic ingredients) to keep skin blemish, free and helps cope with cuts nicks, burns and nappy rash.
4. No error