Use the "Time series learning activity" excel document under topic $3$ in moodle to answer the following question:What is the equation of the best fit line for the data given in sheet $1?$Select one:a$.$y $=0\mathrm{.}4157$ x $-4\mathrm{.}68$b$.$y $=2\mathrm{.}199$ x $+15\mathrm{.}45$ c$.$y $=-0\mathrm{.}4157$ x $-4\mathrm{.}68$d$.$y $=-2\mathrm{.}2242$ x $+15\mathrm{.}121$ e$.$y $=2\mathrm{.}2242$ x $-15\mathrm{.}121$