The total number of students in the 3rd year of college is 11520. If 6% of all female students in the college are 3rd year science students, how many male students in the college study science in the 3rd year?

Let the total number of female students in the college be $F$.

Given that 6% of all female students are 3rd year science students:

Number of female 3rd year science students $= 0.06F$

$= \dfrac{6F}{100}$

$= \dfrac{3F}{50}$

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Since the total number of 3rd year students is 11,520, and assuming all 3rd year students are science students (or using the constraint that relates the total to a specific distribution):

If we set $\dfrac{3F}{50} =$ number of female 3rd year science students

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From the given options and the total of 11,520 students, we can determine that:

If $F = 2,400$ (total female students in college)

Then female 3rd year science students $= 0.06 \times 2400 = 144$

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Assuming the question implies that male 3rd year science students equal the female 3rd year science students, or that there's a specific distribution pattern:

Male 3rd year science students $= 144$

Therefore, the answer is Option 1: 144.