If you let your emotions take over while you are driving, it may lead to:
a. unsafe speed
b. loss of control
c. aggressive driving
d. all choices listed are correct

All of the above
controlling emotions will not only let you have control on speed, but also let you have safe driving.
if you are worried, upset, frightened, depressed, or even happily excited, your driving skills can be as negatively impacted as they would be if you were engaged in an intense phone call or after having consumed several alcoholic drinks.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic