Year (t)	2010	2011	2012	2013	2014	2015	2016
Sales (in Rs. crores) (y)	6	8	9	11	13	17	20

In reference to the above data, which of the following statements are correct?
(where \(x=t-2013\) )
(A) If the equation of the straight line trend is \(y=12+2.29 x\), then the trend value for the year 2017 is 21.16.
(B) If the equation of the straight line trend is \(y=12+2.29 x\), then the trend value for the year 2013 is 11.
(C) If the equation of the straight line trend is \(y=12+2.29 x\), then the trend value for the year 2015 is 17.
(D) If \(\left(t_1, y_1\right),\left(t_2, y_2\right), \ldots,\left(t_n, y_n\right)\) denote the time series and \(y_t\) are the trend values of \(y\), then \(\sum\left(y-y_t\right)=0\).
Choose the correct answer from the options given below :

1. A (A), (B) and (D) only
2. B (A) and (D) only
3. C (A), (B) and (C) only
4. D (B), (C) and (D) only