Which of the following should tend to decrease the firm's profitability?

$1)$ a decrease in the speed at which receipts are processed

$2)$ an increase in the allowance for doubtful accounts

$3)$ riding the credit of the firm's suppliers

Select the best option below.

Question $27$Select one:

a$.$

$1$ and $3$

b$.$

$1$ and $2$

c$.$

$2$ and $3$

d$.$

$1,2,$ and $3$