Pls help!!Why do scientists use models? Question 1 options:

because some systems are so large, small, or complex they are difficult to predict

all answers are true

to aid in the development of questions and explanations about systems

to replicate and simplify physical reality to allow for precise experiments

it was spontaneous.

"ain't i a woman? " is the name given to a speech, delivered extemporaneously, by sojourner truth, (1797–1883), born into slavery in new york state.sojourner truth' delivered her famous speech "ain't i a woman? " (which did not have a title at that moment) was given without any previous preparation. her dissertation took place at the women's convention in akron, ohio, in 1851.