California State Review says that Form 5805: Part III Line 4 must be entered. Can someone explain what needs to be provided there ?

Form 5805 is used to calculate the penalty for underpayment of estimated tax by individuals and fiduciaries. Part III Line 4 specifically requires you to enter your:  

1. Itemized deductions for the period shown in each  column.
2. If you do not itemize deductions, enter -0- here and  on line 6. 
3. Estates or Trusts, enter -0- here, skip to line 9,  and enter the amount from line 3 on line 9 

: Franchise Tax Board Instructions for Form 5805

: Franchise Tax Board Form 5805