Natalie is married to Chad, who abandoned her in early June of $2024.$ She has not seen or communicated with him since then. She maintains a household in which she and her two dependent children live. Which of the following statements about Natalie's filing status in $2024$ is correct?

a$.$ Natalie can file as a head of household.

b$.$ Natalie can use the rates for single taxpayers.

c$.$ Natalie can file a joint return with Chad.

d$.$ Natalie can file as a surviving spouse.

a$.$ Tim must include all of the interest in his gross income.

b$.$ Jane reports $$450$ of interest income, and Tim reports $$1,350$ of interest income.

c$.$ Jane must report $$1,800$ gross income.

Which of the following items is deductible?

a$.$ Contributions to mayor's reelection campaign.

b$.$ Speeding ticket incurred while on business.

c$.$ Substantiated gambling losses $($not in excess of gambling winnings$)$ from state lottery.

d$.$ Premiums paid on personal life insurance policy.