HELP PLEASE I WILL GIVE BRAINLIEST IF SOMEONE HELPS ME WITH D AND E

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

b) nuclear ive learned that in a pedtrodic table

it's c (engineer's do their work with mechanical stuff not on any living being)