Thank you.
Dear Olindalima,
�I am not sure which to choose, A or B�. Please, help me!�
�I am at a loss as to what to buy for my daughter�s birthday. What do you suggest? Please, help me!�
�I don�t know which to pick. I don�t know which to choose, A, B, or C. Please, help me!�
�I am in a dilemma, because I can�t decide whether to choose A or B. What do you suggest? Please, help me!�
�I can�t make up my mind which to choose, A, B, or C. Please, help me!�
�I am in a quandary, because there are several possible courses of action, and I can�t decide what to do. Please, help me!�
�What is your opinion? Which one is right --- this one or that one? Please, help me!�
�I am undecided which answer/word/sentence/construction is correct. Please, help me!�
�I am in doubt/I am doubtful/I am uncertain/I am undecided/I am confused/ as to how to answer this question�.
�I have doubts/I have my doubts/I have a difficulty/I have a problem/I have a query/I have a question/I have a hesitation/I have an uncertainty/ regarding this situation�.
These, and many other phrases, would be suitable.
If you wish, PM me, or Skype me, and we can discuss it further.
Les Douglas