"Bottom" refers to the lowest part of something, such as the bottom of a container, a structure, or a hierarchy.
"Lot" refers to a plot of land or a large number or quantity.
"Moment" refers to a brief period of time or an important point in time.
"Promise" refers to a declaration or assurance that one will do something or that something will happen.
"Cruel" means causing pain or suffering to others intentionally or without remorse.
"Afraid" means feeling fear or apprehension.
"Clever" means quick to understand, learn, and devise or apply ideas.
"Hunt" means to pursue and capture or kill wild animals for sport or food.
"Finally" means at last or at the end of a series of events.
"Angry" means feeling or showing strong displeasure or hostility.
"Clever" means quick to understand, learn, and devise or apply ideas.
"Reply" means to respond verbally or in writing to someone.
"Safe" means not exposed to danger or risk; not likely to be harmed or lost.
"Fool" refers to a person who lacks good sense or judgment; a silly or stupid person.
"Having much or many" refers to having a large quantity of something.
"Not seen" means not visible or not able to be perceived with the eyes.
In sentence (a), "attack" does not fit well with "pictures" in the context of email messages.
It seems out of place and unclear what is meant by "attack pictures."
Sentence (b) is clear and grammatically correct, stating a common fear (arachnophobia) that some people have towards spiders.