High schools should require all students to take four years of mass even though most students will probably not become mathematicians. Many of them will choose a profession where math plays an important role, architects, pharmacist and carpenters. All use math every day. A strong math foundation in high school is important for students to succeed in these and other professions, in two sentences, explain which word or phrase should be added to the paragraph to increase its cohesion, and why that word or phrase would increase cohesion.

A strong math foundation in high school is important for students to succeed in these and other professions, **as it** provides them with essential problem-solving skills and logical thinking abilities. Adding the phrase "as it" creates a logical link between the previous sentence and the explanation of why a strong math foundation is important, thus enhancing the paragraph's overall cohesion.