Upright Company reported a retained earnings balance of P4,000,000 on January 1 ,2021. In August 2021, the entity determined that insurance premiums of P600,000 for the three-year period beginning...

Upright Company reported a retained earnings balance of P4,000,000 on January 1 ,2021. In August 2021, the entity determined that insurance premiums of P600,000 for the three-year period beginning January 1, 2020, had been paid and fully expensed in 2020. The income tax rate is 30%.
What amount should be reported as corrected retained earnings on January 1, 2021?

a. 4,200,000

b. 4,280,000

c. 4,400,000

d. 4,420,000