There are 10 questions, each question is either True or False. Number of different sequences of incorrect answer is also equal to

Options

A. No. of ways in which a normal coin tossed 10 times would fall in a definite order if both heads and tails are present.
B. No. of ways in which a multiple choice qustions containing 10 alternative with one or more than one correct alternatives, can be answered.
C. No. of ways in which it is possible to draw a sum of money with 10 coins of different donomintions taken some or all at time.
D. No. of different selections of 10 indistinguishable things some or all at a time.

Answer

A