In order to name a compound, it is necessary to have the names of each individual element that makes up the whole compound:
A) Here we have Hydrogen and a polyatomic anion called sulfate, but in this case we can't just put these two names together, since this is an acid, and you might identify it by this H in front of the compound, therefore this is the Sulfuric acid
B) Here we have sodium and hydroxide which is a diatomic anion, the name is simply Sodium hydroxide
C) Another case in which we have H in front of the compound, therefore this is the Hydrobromic acid
D) Here we have another base with Chromium in its composition, since this Chromium has a 3+ charge, the name will be Chromium (III) hydroxide