So first let me introduce myself. I am planning to apply for masters in mathematics in this year. I am student of bsc. 3rd year of Mathematics. Although my initial interest was to study about algebraic number theory, to know about algebraic number theory deeply, i think one should know about commutative algebra also. So I started a readership on commutative algebra under a professor. But as the time passed I also stared to grow liking for commutative algebra. And now I want to explore more commutative algebra before diving deep into algebric number theory, so here comes the problem.
In the Sop while applying to foreign is it okay to write about having multiple subject of interest as one is prerequisite of other. Or should I specify one of them. I really want to study algaebric number theory but I also want to know more about commutative algebra. Any help will be appreciated. Thanks in advance.