For the following sinusoids$,$ select all the true statement$($s$).i_1=5cos(4t+90)$ and $i_2=10cos(4t).$

All statements are true

$i_2(t)$ lags $i_1(t)$

$i_1(t)$ and $i_2(t)$ are out of phase

$i_1(t)$ and $i_2(t)$ are in phase

$i_1(t)$ leads $i_2(t)$

$i_1(t)$ lead by $90$