During 2021, Fuzzy Pandas Inc. (FPI) had three series of employee stock options outstanding, details of which follow: 

1. Option A entitle employees to purchase 10,000 ordinary shares for $22 each. This series of options was granted on February 1, 2019, and expires on June 30, 2021. 

2. Option B entitle employees to purchase 15,000 ordinary shares for $26 each until December 31, 2022, and $23 thereafter. This series of options was granted on June 1, 2018, and expires on December 31, 2025. 

3. Option C entitle employees to purchase 20,000 ordinary shares for $21 each. This series of options was granted on April 1, 2021, and expires on December 31, 2024. 

The average market price of FPI’s ordinary shares for the year ended December 31, 2021, was $25.

Required:

a. For each of the options series, indicate whether they are dilutive or antidilutive in nature, and provide the reason why. 

b. For each of the options series that are dilutive, determine the number of incremental shares to be notionally issued.