Identify correct labeling in diagram

Hindi

2.Human Reproduction

medium

Identify the correct labeling in the diagram

$a$ - Blood vessel, $b$ - primary follicle, $c$-tertiary follicle, $d$ - Graafian follicle $e$ - Ovum, $f$ - corpus luteum

$a$ - Primary follicle, $b$ -blood vessel, $c$ - tertiary follicle, $d$ - Graafian follicle $e$ - Ovum, $f$ - corpus luteum

$a$ - Blood vessel, $b$ - primary follicle, $c$- tertiary follicle, $d$ - ovum, $e$ - Graafian follicle, $f$ - corpus luteum

$a$ - Ovum, $b$ - Graafian follicle, $c$ - corpus luteum, $d$ -blood vessel, $e$ - primary follicle, $f$ - tertiary follicle

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Standard 12

Biology

medium

medium