In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to choose a parenting style [title] Know the 4 styles of parenting. [step] Although there are many ways to be a parent, psychologists often refer to 4 main parenting styles. The styles are authoritarian, permissive, authoritative, and uninvolved. <sep> (A) Take some time to learn about each the positive and negative qualities of each style so you can figure out which style will benefit your family the most. It's important to consider your specific child's temperament and tailor your parenting style to suit their needs, incorporating as many authoritative aspects as possible. (B) [substeps] Authoritative parenting styles tend to focus on being a superior leader and supporting all children. Non-authoritarian parenting styles also require that you always become a one-on-one parent. (C) The styles focuses on incorporating strong communication, discipline, family beliefs, and rule-breaking into the decision making process. [substeps] Discipline refers to your work ethic, ability to follow through and do what you are told, and qualities you and your children are capable of developing in your own life. (D) [substeps] Authoritative means to act in the best and most mature ways, while authoritative means to assert authority (i.e., assertiveness when something goes wrong). Authoritative encompasses one's own way of taking and retaining power and the needs of others.
A

[header] How to introduce a pleco to a goldfish tank [title] Ask how large the pleco will grow to be. [step] Although most pet stores will sell plecos that are only a few inches in length, you should know that they can grow quite large. Fully grown plecos can reach up to two feet in length. <sep> (A) [title] Check your tank's surface before you place the pleco into the tank. [step] Make sure that your aquarium is opaque or has a drop-down tray so that your pleco is not exposed to water. (B) This can have a negative impact on their lifespan. [title] Choose a tank with large walls and no air holes. (C) [title] Make sure you cover more than twice the tank. [step] If you find that your pleco grows too much, cover the entire tank with a blanket. (D) The exact size of the pleco will vary depending on the species. Ask someone at the pet store how large the pleco will get before making a purchase.
D

A person trowels wet concrete on the ground. another person <sep> (A) stands beside him. (B) uses a piece of wood to level the concrete. (C) is choosing the material to put on the walkway. (D) sets a timer on their hand and starts painting a wall.
B