Explanation

For the first blank, you need a word for the tissue right on the inside of an eggshell. Yolk is the central part of the egg, so eliminate this choice. Albumen is the egg white, but this does not line the eggshell; eliminate this choice. Membrane is the word meaning the tissue that separates parts of an organism, and is the best fit.

For the second blank, you need a word that states the membrane lets things get through. Impermeable means blocks from passage, the opposite of what you need. Flexible does not mean allowing to pass through, so eliminate this choice. Porous is the best choice.

For the third blank, you need a word that means enter, and the correct choice, permeate, means exactly that. Addle means to confuse and infect means to cause to become ill, and neither choice fits the context of the third blank.

Hence option B, F and G are correct!