Which sentence has an error in it?
a) all of the students were excited when their teacher was on the game show.
b) the principal parked her car in an illegal spot and received a traffic ticket.
c) each truck dropped off its load of firewood before heading back to the forest.
d) the girl who had dropped his book in front of the cafeteria looked embarrassed.

D- because if it’s a girl it should be “ the girl who dropped her book in front of the cafeteria looked embarrassed

Okay, biology isn't exactly my strongest subject (it never has been), but i'm pretty sure the answer is nucleotides. dna is made up of nucleotides. each nucleotide contains a phosphate group, a sugar group, and a nitrogen base. there are four different nitrogen bases: adenine (a), thymine (t), guanine (g), and cytosine (c). a always pairs with t, and g always pairs with c.

Iwould but i can’t