A package of 8 pens costs $1.09. Milo’s work to find the unit price of the pack is shown below.

8p/$1.09 = ?/$1.00
? = 8÷$1.09
?= $7.34
Where did Milo make his first error?
a.He assumed the pens are equally priced.
b.He wrote the unit rate incorrectly.
c.He made a place value error when dividing.
d.He multiplied instead of dividing.