(● ̄(エ) ̄●)
Not always. Some women can be very small chested, even at that height. My cousin is 5'9" and she's always had a small chest. She thought that her chest would get bigger after she had kids, but it didn't lol.
But, many things can make breast size smaller, genetics, malnutrition, stress, late puberty, etc.
And apparently some Cis women can have them too!
From Google:
"Yes, cisgender women can have visible Adam's apples. While generally less prominent due to smaller larynx structures, some cis women have a noticeable Adam's apple (thyroid cartilage) due to genetics or hormonal factors. It is a normal anatomical variation, and some women may opt for a tracheal shave for cosmetic reasons.
Key Details Regarding Adam’s Apples in Cis Women:
Anatomical Reality: Everyone, regardless of gender, has thyroid cartilage that surrounds the larynx.
Visibility: While typically less pronounced in women, it can still protrude based on individual anatomy.
Causes: A more defined Adam's apple in a woman can be caused by genetics, hormone levels, or individual body structure.
Misconceptions: A visible Adam's apple does not indicate someone is not a cis woman.
Management: Some women choose to minimize their appearance through methods like contouring/makeup or surgical procedures."

They forgot a normal woman at that age and height will have a decent breast size too.