Classify the following differential equations according to type, linearity, and order.

A$.\frac{d^{2}y}{d{x}^2}4y^3\frac{dy}{dx}=9x^{2}y$

Type:

Linearity: $---$Select$-$

Order: $--$Select$---$

B$.\frac{de{l}^{2}u}{del{x}^2}\frac{de{l}^{2}u}{del{y}^2}=u$

Type:

LInearity: $$ Select$---$

Order: $$

C$.(\frac{dy}{dx}{)}^2\frac{dy}{dx}=9x^{2}y$

Type: $$

LInearlty: $$

$---$Select$---$

Order: $$